Some of these athletes are right in their primes, some have a long track record of sustained success, and some are athletes just beginning their dominance.

We recently ranked the most dominant athletes in sports in general, but we also chose the most dominant in each sport individually.

From the NFL and NBA to soccer, tennis, golf, track and field, and more, we selected the 31 athletes who stake a claim as the best in the world at what they do.

Men's soccer: Cristiano Ronaldo

Real Madrid forward

Age: 30

Ronaldo took home the Ballon D'or in 2014 and carried Portugal to the World Cup despite being knocked out in the first round. He has 18 goals in 2015 and 50 goals in 47 games for the 2014-15 season.

Women's soccer: Nadine Kessler

German national team midfielder

Age: 27

Kessler won 2014 FIFA's women's player of the year and was leading a German team that's one of the favorites going into the 2015 Women's World Cup. In October she hurt her knee and will now miss the World Cup.

Men's tennis: Novak Djokovic

Serbian tennis player

Age: 27

Djokovic is the No. 1 ranked tennis player in the world, and seems best poised to dominate in the near future. He's the first player to win the year's first three Masters 1000 tournaments — the biggest outside the Grand Slams — and has a 5,000-point lead over Roger Federer for the No. 1 rank.

Ronda Rousey is the most dominant athlete alive.

The 28-year-old has won every UFC fight she has fought, beating some of her opponents in less than a minute. In the process, she has elevated women's MMA and made it a key component of UFC — something that was hard to envision five years ago.

But before she became a crossover star, she was a regular 20-something struggling to figure out what to do after dedicating her life to making the Olympics.

In 2008, she went to the Olympics in Beijing and won a bronze medal in judo.

Source: USA Today

But afterward, she had no job to fall back on, telling MTV, "There’s nothing put in place for Olympians after they're done. They give you a couple grand, a handshake, and they kick your ass out the door."

Source: MTV

She took a graveyard shift at a 24 Hour Fitness in California while trying to figure out what she wanted to do.

Source: MixedMartialArts.com

Some of these phenoms are already on our list of the 50 most dominant athletes alive.

Others, if everything works out, could be in the next few years.

While sports history is of full of examples of athletes that fail to live up to the hype, there are also stars like LeBron James, Tiger Woods, and the Williams sisters who actually met their astronomical expectations.

Giannis Antetokounmpo, Milwaukee Bucks player (age 20)

The so-called "Greek Freak" was better in 2014-15 than anyone in the NBA expected. He has the height of a center, the skills of a guard, and an unreal 7'4" wingspan.

His potential is off the charts. He has been compared to everyone from Kevin Durant to Kevin Garnett. He has more raw physical talent than anyone else his age, and if he continues to develop, he could rule the NBA with Anthony Davis once the LeBron era comes to an end.

Martin Odegaard, Real Madrid player (age 16)

Odegaard, a Norwegian prodigy who burst onto the scene at age 15, had every big team in Europe clamoring for his services in January of 2015.

Soccer is full of examples of young players who fail to live up to the hype. Will Odegaard be different?

It's promising that he started Norway's most recent European Championship qualifier, and he bypassed the typically club progression and jumped straight to Madrid.

Simone Biles, US gymnast (age 18)

If there's one person you'd bet on being a star at the 2016 Rio Olympics, it's Biles.

Biles has been the most dominant force in women's gymnastics in the last two years. She won four golds at the last World Championships and the gold in the all-around competition in both 2013 and 2014. She's better than breakout star Gabby Douglas was when going into the London Olympics, and has a chance to take home a boatload of medals.

Novak Djokovic is currently the No. 1 tennis player in the world, and the highest-ranked men's player on our list of the most dominant athletes alive.

And he might also be the quirkiest.

From eating the grass at Wimbledon to handing out chocolates to the media, Djokovic's definitely a colorful person — who happens to be the best in the world at his sport.

He only drinks warm water. He says cold water inhibits blood flow.

Source: WSJ

He's eaten grass after every win at Wimbledon. He says it tastes like sweat.

Source: The New Yorker, Sports Illustrated

He's inseparable from his pet poodle Pierre. When Pierre wasn't allowed in Wimbledon in 2011, a source told the Telegraph, "Whenever he can he takes the dog with him, he is genuinely upset. For him this is a very serious issue."

Source: Telegraph

Cristiano Ronaldo is No. 4 on our list of the most dominant athletes in the world.

He's also the world's highest-paid soccer player, which means he has a decent amount of cash to burn.

The 30-year-old forward for Real Madrid owns luxury cars, flies around the world in private jets, and makes a mint on endorsement deals — and that's not even half of it.

He earned $80 million last year, making him the second highest-paid athlete in the world.

Source: Forbes

And more than a quarter of that ($28 million) is in endorsement deals with companies like Tag Heuer and Nike.

Source: Forbes

He rakes in over $9 million from his Nike deal alone.

Source: Sport

Our list of the 50 most dominant athletes alive features men and women from different sports, age groups, and parts of the world.

As different as these athletes are, all of them share something special: a skill level and talent that's well above that of their competitors.

Compiled by Tony Manfred, Scott Davis, and Cork Gaines.

50. Kevin Durant

Oklahoma City Thunder forward

Age: 26

After winning MVP in 2014 with averages of 32 points, seven rebounds, and five assists per game, Durant missed most of the 2014-15 season with injuries. In the 27 games he did play, the Thunder went 18-9 and he averaged 26 points a game. When he's healthy, Durant is one of the top two players in the NBA.

49. Candace Parker

Los Angeles Sparks forward

Age: 29

Parker made the All-WNBA First Team in 2014 after posting averages of 19 points, 7 rebounds, 4 assists, nearly 2 steals, and 1 block per game.

48. Miguel Cabrera

Detroit Tigers first baseman

Age: 31

In a "down year" in 2014, Cabrera still had 25 home runs and 109 RBIs while batting .313-.371-.524. In 12 games in 2015, Cabrera already had two home runs and 10 RBIs and is hitting .426.

Small businesses are responsible for two-thirds of new jobs created in the US and employ nearly half of the nation's workforce, according to the US Small Business Administration.

This week the SBA is honoring these businesses and their owners as part of National Small Business Week, an annual tradition since 1963.

To highlight outstanding growth and innovation, the SBA has selected a small business person of the year in all 50 states, the District of Columbia, and three US territories.

This year's winners include an animal shelter in Maine, a candy shop in Idaho, and a solar energy company in California.

ALABAMA: Donna Coleman, Aetos Systems Inc.

In 2007, Coleman founded Aetos Systems, a Huntsville-based information technology and engineering services company geared toward government and commercial clients.

A year later, Aetos became a prime contractor for clients including NASA and the US Department of Defense. The company currently employs 48 people and has over $9 million in revenues.

ALASKA: Renee L. Schofield, Tongass Substance Screening

Schofield used a $20,000 small business loan to acquire TSS in 1999. At that point, she was the company's only employee — on call 24 hours a day, seven days a week to provide drug and alcohol testing. 

Today, the company's 14 employees operate out of Alaska, Iowa, Illinois, and Missouri, serving 325 clients and 7,000 people. 

ARIZONA: Michael T. Melton, ClearCall Solutions

Since 2001, Melton has launched several businesses that fall under the umbrella of ClearCall Solutions, a Chandler-based inbound call center focusing on customer acquisition.

In the last five years, the company has experienced 255% revenue growth, from $9.7 to $32.8 million, and added 280 employees.

Jeff Gundlach just spoke to investors at the New York Yacht Club and gave the following presentation, called "Summer Insects," a theme inspired by Chinese philosopher Chuang Zhu. 

Chuang Zhu's quote Gundlach used as a jumping off point was, "You cannot discuss ice with a summer insect."

Gundlach said this applies to the high-yield bond, market because for the entire time that the asset class has existed, it "has not experienced a secular rise in interest rates."

The message from Gundlach here is that in the 30 or so years that junk bonds have existed, there has never been a long, extended rise in interest rates. 

Gundlach spent much of his presentation talking not as much about what is imminent for high yield bonds, but about what could be coming for these assets over the next several years.

Thanks to DoubleLine Funds for letting us featuring this presentation.

The Apple Watch has only been available for a little more than a week, but early adopters and reviewers have already pointed out some of its shortcomings. 

While many have described the Apple Watch as the best and most ambitious smartwatch yet, there's room for improvement. 

The heart rate monitor doesn't always work with tattoos.

Some Apple Watch owners have complained that the watch couldn't detect whether or not it's on your wrist if you had a tattoo. Following these reports, Apple has updated a portion of its Apple Watch page to say that tattoos may interfere with the watch's sensors. 

A few watch owners have complained that the Handoff feature doesn't work properly.

Handoff is supposed to let you pick up exactly where you left off when switching between your iPhone, iPad, and Apple Watch. Several watch owners have said the Handoff feature won't work on the Apple Watch, according to the Apple Support Communities. 

Some people are having a hard time charging the watch.

At the end of April, several users reported via Twitter and Apple's Support Communities that the watch wouldn't charge properly, according to 9to5Mac. The watch would connect to the charger properly, but nothing would happen. 

Europe's wealthiest people are a bit of a mixture.

There are some that come from old money- centuries-old dynasties - as well as self-made billionaires from pretty much every business sector you can think of.

Different parts of the continent have different stories — from the old money of Western Europe to the plutocrats who've made their fortunes navigating the markets that opened up in the east as the Iron Curtain fell. 

We've used the Forbes rich list the richest people in each European country — ranked from the least wealthy upwards — in some countries, no-one was ranked by Forbes, or there was no picture available of their reclusive top billionaire. 

Romania's richest man, Ioan Niculae, made his money from agriculture and fertiliser businesses in eastern Europe. He was sentenced to two years in prison for reportedly paying a bribe to a political official. NET WORTH: $1.15 billion (£760 million)

Lebanese-born art mogul David Nahmad is Monaco’s richest man, and is part of a family of renowned art dealers. In 2013 the Nahmads sold Monet’s ‘Le Palais Contarini’ for $30.8 million at Sotheby’s. NET WORTH: $1.85 billion (£1.22 billion)

Antti Herlin, Finland's richest man, made his money in an unlikely way — the escalator and elevator business. He's the great-grandson of Harald Herlin, who purchased the KONE engineering company in the 1920s. NET WORTH: $3.6 billion (£2.37 billion)

Many millennials have no idea how to use Google properly, according to a study of college students at Illinois Wesleyan. 

You might not be using it to its full advantage either. 

Although it's simple to type something into the search bar, there are a few quick tips that can help you get the exact results you're looking for, faster.

First, let's start with some basic search features that you can use to get information you need really, really quickly.

Type "movies" followed by a town or city to pull up a list of movies that are showing locally.

Google "capital of" followed by any city to get a bolded answer.

If you search "weather" followed by a city or a zip code, you'll get the latest forecast. 

If you search a flight code — say Hawaiian Airlines 24 — you'll get instant flight information. 

Try Googling "time in Singapore" or any other city. 

Make conversions simple by searching something like "300 yards in miles" or "212F in C."

(As usual, you might be able to find an Easter egg or two.)

Now for some ways to filter your results. Google has a set of "operators" that you can add to your search to give it special instructions.

There have been many films made about Kurt Cobain, but none like "Kurt Cobain: Montage of Heck."

The documentary marks the first time a handful of footage, writings, and audiotapes either created by or featuring Cobain have ever been seen or heard by the public. 

What we learned about Kurt Cobain >

The film, directed by Brett Morgen​, who is best known for his other rock docs like "Chicago 10" and "The Kid Stays in the Picture," premiered at Sundance this past winter and will be released on HBO on May 4.

Morgen uses animation to bring Cobain’s tapes and notebook scribbling to life; Cobain’s drawings of headless creatures, to-do lists for his early punk bands, and musings about music and sex quite literally fly around the page. Even some of the shortest sentences and simplest sketches contain a mass of meaning about the legendary rocker.

You learn a lot about Cobain from watching the documentary, and we decided to make a list of the things that stuck with us. Sure, we all may know how fucked up Courtney and Kurt’s love affair was, but we didn’t know she dubbed him "Acne Superstar." We also had an idea Cobain was a crazy kid, but the film reveals just how lonely his childhood was.

Whether you’re a massive Nirvana fan or not, the film is captivating. 

Cobain remains a relevant, however mysterious, icon not just because he died young, but because he left without answers. "Montage of Heck," at last, provides us with some of them. 

He took Ritalin as a kid.

He was kicked out of both of his parents' homes.

He couldn't get girls when he was in high school.

Cobain couldn’t get laid.

As a teenager, he admits to being horny and telling lies about having sex with chicks on vacation. Through one of his audio recordings, he tells the story of his first sexual encounter. It was with a girl who everyone in school picked on.

It’s crazy to think that the dude who became a total rock star and sex symbol didn’t have good luck with women.

A book signing for Kim Kardashian West's "Selfish" at a midtown Manhattan Barnes & Noble Tuesday started out as a peaceful gathering of fans, but soon turned tense as animal rights activists transformed the gathering into a protest and a few fan altercations took place.

The book, which debuted this week, is full of selfies — some never before seen by the public — of Kardashian and her friends and family.

The star was at the store to meet and greet fans, and we went to check out the scene.

For all the details about the signing, click through this slideshow.

SEE ALSO: The internet is freaking out that Kim Kardashian may have copied Beyoncé's Met Gala dress

People were lined up outside Barnes & Noble, from the store's Fifth Avenue and 46th Street entrance to the middle of 46th and 47th streets, almost to Sixth Avenue.

"Selfish" came out yesterday and is actually Kardashian's second book. She co-authored "Kardashian Konfidential" with sisters Khloé and Kourtney in 2010.

Barnes & Noble employees were tasked with crowd control, continually asking Kim fans not to block the sidewalk.

Kardashian was ensconced on the second floor of the store. As guests continued to wait, the temperature outside climbed. Rumors flew that the air-conditioning was broken inside and that, worse yet, Kardashian would not be taking any selfies with fans.

Brendan McCann, center left, arrived at 6:15 a.m. to wait for Kardashian to sign his copies of "Selfish."

"I just love Kim," he said, "and I've never gotten a chance to meet her before. I love that she has this platform, especially with the stuff Bruce is going through... I think she has made girls feel more comfortable in curvy bodies."

When asked how he'd respond to people who might criticize anyone who buys a book of selfies, McCann said, "Look at the business side of it. This woman literally released a 450-page book of pictures of herself that she took on her phone, and has hundreds of people showing up to meet her... If I could sell my book of selfies for $20 at Barnes & Noble, I would too. Why wouldn't you?

Hacks happen all the time. While some exploits are caused by insanely technical code created to dupe even the most advanced machines, more often it's simple human actions that are to blame. Even the best protection software won't help someone with unsafe online practices.

The best way to protect yourself is to know what you're doing that may be unsafe.

Here's a list of nine common things people do that quite often leads to them getting hacked.

Your password is too obvious

When it comes to securing online devices, people get lazy. Quite often people choose the easiest, most uniform passwords. Every year SplashData releases a list of the most common stolen passwords, and the results are embarrassing. For instance, the number one most used password, according to breached files posted online, is "123456." Coming in at number two is "password." People should choose more advanced passwords. Put a number in there, why not add a punctuation mark or two. And while you’re at it, don’t make it a common word or something obviously associated with you. Hackers are looking for people with easy passwords and pounce every time they find one.

You don’t use two-step authentication

But even the most advanced passwords can be guessed or stolen. When this happens, it’s best to have a safeguard. Two-step authentication makes gaining unwanted authorization into private accounts much harder, as it requires the user to verify their identity twice. For instance, if you enter your password you’ll be directed to another page to enter a code that was sent to your cellphone. This is a pretty easy step, and provides a lot of protection.

You use free Wi-Fi

While accessing the internet on coffeeshop wi-fi may seem convenient, it also opens you up to a slew of potential hacks. For instance, security firm Cylance discovered a huge vulnerability in the routers of some of the largest hotel chains. This vulnerability potentially gave hackers unfettered access to users' web surfing. Additionally, free public Wi-Fi was just proven to be an essential tool to launch large-scale DDoS attacks. A security professional once told me that he never checked private accounts like bank and work data using hotel Wi-Fi. If you are, it could be getting you in hot water.

If you can make it onto ABC's hit show "Shark Tank," you'll have an audience of about 10 million people to show your product. It's why even entrepreneurs who lose out on a deal often report a notable uptick in sales following their appearance on the show, which portrays negotiations between small-business owners and a panel of potential investors dubbed "Sharks."

But for those who do get a deal, "Shark Tank" can change the trajectory of their business, turning a fledgling company into a national brand.

We asked Carolyn Baumgarten, a writer for Andrew Figgins' fan blog In the Shark Tank, to identify the show's greatest success stories based on sales after their "Shark Tank" appearances.

The following entrepreneurs took a successful pitch and maximized the potential of the Shark they partnered with through focus and determination.

Wicked Good Cupcakes

Danielle Vilagie and Tracey Noonan are a mother-daughter duo from Boston with a company that makes cupcakes in a jar. In season 4, they made a deal with Kevin O'Leary in which he invested $75,000 for royalties instead of equity. He made $1 from every cupcake sold until he made his money back, and then began receiving 50 cents per cupcake sold.

Since its appearance on the show, Wicked Good Cupcakes has expanded to a new production facility and a couple of new locations, and it is planning to bring in $3 million in sales by the end of this year, WCVB Boston reports.

Lollacup

Husband and wife entrepreneurs Mark and Hanna Lim created the Lollacup as an improvement on the standard sippy cup for toddlers. Their product is BPA-free and spill-proof, and its straw is designed to catch every last drop of a drink. In season 3, the Lims partnered with both Mark Cuban and Robert Herjavec for a $100,000 deal in exchange for 40% equity.

The Lims have brought in almost $1 million in sales, making the Lollacup the most successful children's product to come out of "Shark Tank."

Simple Sugars

Lani Lazzari was just 18 years old when she entered the tank in season 4 to pitch her skincare company Simple Sugars. She ended up making a deal with Cuban for $100,000 in return for 33% equity.

Within just 24 hours of her episode's premiere, Lazzari's sales jumped to $220,000 from $50,000, and she hit $1 million six weeks later. Today Simple Sugars products are in more than 700 retail locations and ship internationally. This year, the company has already brought in over $3 million in revenue.

For those who like a little bit of thrill, amusement and water parks can be a great way to enjoy the outdoors and some adventure.

The Travel Channel recently released its list of the 10 best amusement and water parks in the US.

From California's Knott's Berry Farm to Hawaii's Wet 'n' Wild, the US offers some great rides and slides.

Aquatica — SeaWorld's Waterpark in Orlando, Florida — is home to Ihu's Breakaway Falls, which, at 40 feet, is the tallest and steepest waterslide in Orlando.

The Fury 325 at Carowinds in Charlotte, North Carolina, is one of the world's five tallest rollercoasters. It's 325 feet high — hence the name — and sends riders around turns at a whopping 95 miles per hour.

Anaheim, California's Disneyland celebrates its 60th anniversary this year with a Diamond Celebration, nighttime parade, and fireworks show.

Research finds that 85% of rich people read two or more education, career-related, or self-improvement books per month. 

If it works for them, why couldn't it work for you?

Here, we've highlighted some of the best books about managing your money and achieving wealth out there, from expert-recommended classics to some of our favorite new editions.

No guarantees, of course — but if you want to get rich, it can't hurt to get reading.

'How Rich People Think,' by Steve Siebold

Steve Siebold spent 30 years interviewing over 1,000 millionaires and billionaires to figure out what it is exactly that they're doing right. "Everyone has the same opportunity to acquire wealth," he wrote on Business Insider.

"How Rich People Think" provides insights into becoming wealthy, broken down into bite-sized chapters perfect for reading on the subway or over lunch. In it, Siebold recommends further reading and concrete action steps to help ambitious young people build their own wealth.

'The Cold Hard Truth on Men, Women, and Money: 50 Common Money Mistakes and How to Fix Them,' by Kevin O'Leary

"Shark Tank" investor Kevin O'Leary keeps it simple in "Cold Hard Truth on Men, Women, and Money." His advice boils down to three key points: Don't spend too much. Mostly Save. Always Invest.

He gears each chapter towards a specific stage in life, and gives straightforward tips to implement and changes to make to avoid debt, save money, and effectively invest.  

The self-made millionaire followed up on this financial guide with a second book, "Cold Hard Truth on Family, Kids, and Money."

'Rich Habits: The Daily Success Habits of Wealthy Individuals,' by Thomas Corley

Author Thomas Corley spent five years studying the lives of both rich people and poor people, and managed to segment out what he calls "rich habits" and "poverty habits," meaning the tendencies of those who fit in each group. In "Rich Habits," he outlines his findings.

Habits take a while to build, and the earlier you start, the better. If something as simple as regular exercise and calling friends on their birthdays can increase your chances of attaining wealth, what have you got to lose?

Moms do so much for us. They feed us, encourage us, and shower us with love.

It's only fair to return the favor, but you don't have to break the bank to show mom you care.

We found 13 gifts under $50 that will make you the favorite child this Mother's Day.

One-up the framed photo this year.

Price: $39.95

Put mom's favorite pictures on a custom iPhone case this year. Casetify has a number of attractive layouts and designs to choose from, and you can even import photos from Facebook or Instagram.

Get it here »

Charm her with this stunning charm bracelet.

Price: Starts at $16

What do moms never tire of doing? Talking about their kids. This stainless steel charm bracelet can be personalized with the names and birthstones of each of her kids. It's also a great gift for grandmothers, who can add charms for all her children's children.

Get it here »

Give her the gift of a green thumb.

Price: $44.95

No window box? No problem. Mom can grow her own herbs in the ZeroSoil mini indoor garden — an attractive and mess-less way to display (and eat) fresh, delicious herbs at any meal. It uses a plant nutrient base instead of potting soil, and bonus: It waters itself!

Get it here »

One of the best things about Android is that apps have a lot more freedom compared to those found on iPhones.

Some of the most interesting Android apps are exclusive to Android because they do something Apple wouldn't allow.

From an app that lets you message your friends while still watching Netflix to an app that lets you hack your smartphone's LED lights for custom notifications, you're guaranteed to find something new.

Just remember: You can't recommend them to your friends with iPhones.

Muzei promises to turn your home screen into a "living museum."

Muzei is a live wallpaper that changes your home screen into a different famous work of art each day.

Price: Free

Unlock your phone and apps with your face and voice with AppLock Face/Voice Recognition.

AppLock Face/Voice Recognition is an interesting app that lets you use your face and voice to unlock your phone and access locked apps. You can decide which apps to lock and unlock using this method, and there's even a nifty "liveness" feature that requires you to move your face to protect against people tricking the system with photos.

Price:Free

Keep your Android phone virus-free with Avast Mobile Security and Antivirus.

Sometimes malicious apps make their way into the Google Play app store, and this comprehensive antivirus app will keep you protected. It scans and removes viruses, includes anti-theft tracking, lets you lock specific apps with a pin, and even lets you remotely snap a picture and record audio if anyone steals your phone.

Price:Free

Per Se is one of the best restaurants in the world. 

Thomas Keller's New York flagship has three stars from the Michelin guide and four stars from the New York Times— highest honors from both. 

This week, the job search company Indeed put on a luncheon at the famed restaurant with its chief economists, Tara Sinclair and John Lonski, the chief economist for financial markets at Moody’s.

Business Insider documented the experience. 

Per Se is on the fourth floor Manhattan's Time Warner Center.

From the fourth floor, you can see Central Park.

The restaurant is located behind the famous blue double doors. The doors don't open. To get in, you go through the sliding glass door to the left.