Health & Wellness

These Olympic siblings prove family resemblance is more than skin deep

While some siblings share their mother's eyes or a sprinkling of freckles across the bridge of their noses, others share the same incredible athletic ability. There are 36 sets of siblings competing in Rio. Some are working together, like the Williams sisters; while others are competing head-to-head, like Estonia's Luik triplets.

Here are the siblings who are making the Rio Olympics a family affair.

1. Serena and Venus Williams

Arguably the most famous siblings to grace the Olympics, Serena and Venus Williams, three-time gold medal winners for doubles tennis, exited the Games early when they fell to the Czech doubles team. It's their first Olympic loss after winning gold in Sydney in 2000, Beijing in 2008 and London 2012. Both were eliminated in singles competition, too, but Venus picked up silver in the mixed doubles.

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2. The Luik triplets

To prepare for Rio, Estonian triplets Leila, Liina, and Lily Luik, 30, who just started running seriously at age 24, trained together. They are the first ever triplets to compete in the same event at one Olympics.

3. Aria and Makenzie Fischer

Athletic ability certainly runs in the Fischer family. Two of the youngest players on Team USA, Aria and Makenzie Fischer swim for the U.S. water polo team; 17-year-old Aria and 19-year-old Makenzie picked up their interest in water polo from dad, Erich Fischer, who was on the 1992 U.S. team in Barcelona.

Just a tad excited that Opening Ceremonies are tomorrow!! #goUSA

A post shared by Makenzie Fischer (@makenziefishy) on

4. Kelly and Courtney Hurley

Kelly and Courtney Hurley's parents met while fencing and they passed their love of the sport on to their daughters. This is the second time the sisters are competing for the United States; in London, they took home bronze in the Women's Team Epee.

Sometimes we like each other ❤️

A post shared by Courtney Hurley (@thathurleygurrl) on

5. Gary and Paul O'Donovan

After clinching the silver medal in the men's lightweight double sculls and becoming the first Irish athletes to medal in rowing, brothers Gary and Paul O'Donovan have become a social media sensation thanks to their witty interviews. Their biggest complaint about winning? Being stuck in Rio and missing the celebrations in the pubs in Ireland.

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5. Jamie and Andy Murray

British tennis players Jamie and Andy Murray lost their first match in the doubles tournament, but Andy won a gold, becoming the first singles player to win back-to-back gold medals. He captured our hearts when reminding a reporter that he is not the first tennis player to win two gold medals; that distinction is held by the Williams sisters.

😊🇬🇧👍

A post shared by Andy Murray (@andymurray) on

6. Chloe and Max Exposito

The Australian brother and sister — the first two to make the team — became interested in modern pentathlon thanks to their dad's encouragement; he competed in the event for Australia in the 1984 Los Angeles Olympics.

7. Julia and Katie Reinprecht

The sisters, making an appearance in their second Olympic games with the U.S. field hockey team, learned the sport from their mom, who also coaches field hockey.

8. Jared and Rachel Tallent

While Jared medaled in race-walking at the London Olympics, Rio marks sister Julia's first time race walking in the Olympics for Australia. She should do well if she listens to her older brother — not simply for brotherly advice, but also because he's her coach.

Typical older brother ruining the shot! #teamtallent #oneteam #athsaus #rio2016

A post shared by Rachel Tallent (@rachel.tallent) on

9. Callum and Derek Hawkins

While Callum and Derek Hawkins train together with their dad as coach, they also view each other as rivals. They both qualified for the British Olympic marathon team after strong finishes at the London marathon.

10. Bronte and Cate Campbell

In the 2012 London games, Bronte and Cate Campbell became the first sisters to represent Australia in the same event during Olympic competition. And the two make a formidable team: In Rio, the sisters won gold in the women's 4x100 freestyle relay.

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12. Barbara and Pol Pla

While sister Barbara, 33, boasts a decade more experience playing rugby than brother Pol, 23, they both qualified for their respective Spanish rugby teams.

13. Richard and Peter Chambers

The British brothers grabbed silver in the London Olympics for the lightweight four crew for rowing and are back again to row in Rio.

14. Josh and Nathan Katz

At 18, Josh Katz is the youngest Australian to qualify for judo during the Rio games. He followed in Nathan's footsteps in the sport and the two are competing in Rio together for the first time.

15. Bill and Niall Williams

While Bill is known in New Zealand for playing with the All Blacks, little sister Niall also boasts serious rugby skill, which she developed from keeping up with Bill on the pitch. Both made their nation's rugby sevens team, but Bill ruptured his Achilles tendon, ending his run early.

16. Jacob and Graeme Saunders

These Canadian brothers are participating in their first Olympics during the Rio games, sailing in the two-person 470 race on a boat they call Chester, named after their hometown, which supported their sailing career.

#470 World Championship in #LaRochelle #France

A post shared by Team Saunders Sailing (@teamsaunderssailing) on

17. Arina and Anastasia Rodionova

While Australian sisters Arina and Anastasia made their Olympic debut in doubles tennis in Rio, they were eliminated in the first round.

18. Jonny and Alistair Brownlee

Alistair Brownlee won gold in the triathlon in the 2012 London games. His success causes brother, Jonny, also a triathlete, to push himself harder.

#alistairbrownlee #brownleebrothers #brownlee#triathlon#triathletes#olympics#medalists

A post shared by Alistair and Jonathan (@brownleebrothers) on

19. Lucas and Moises Duque

The Brazilian rugby playing brothers felt proud to take the field at home this Olympics.

20. Felipe and Daniel Sancery

The Duque brothers aren't the only ones playing on the Brazilian rugby team. Felipe and Daniel Sancery also took the rugby pitch for their national team, marking the first time the identical twins participated in Olympic competition.

21. Emma and David McKeon

While dad, Ron, swam for Australia in the 1980 and 1984 Olympics, Emma and David McKeon are making their own mark in Rio. During her first Olympic performance, Emma won a gold, two silvers and a bronze medal.

When you get to go to Rio with your brother #ThatsGold 😄 @cocacolaau

A post shared by EMMA MCKEON (@emmamckeon) on

22. Michael and John Whitaker

At age 61, John Whitaker is one of the oldest Olympians in Rio. He first won silver for Great Britain in the 1984 games for show jumping. Brother, Michael, 56, is competing in his fifth Olympics. The brothers prove that age is just a number.

23. Katherine and Michelle Plouffe

During the London Olympics, Katherine struggled while watching sister Michelle play basketball for Canada. Both twins qualified for the Canadian team for Rio, meaning Katherine won't be squirming in her seats this time.

👯🇨🇦 🇨🇦 🇨🇦 🇨🇦 🇨🇦 Leggo.

A post shared by Michelle Plouffe (@plouffey_15) on

24. Margaux and Isabella Isaksen

While older sister Margaux's attendance in Rio marks her third Olympic performance, Isabella joined for her first appearance in the games. Both women compete in the modern pentathlon, in which Margaux is ranked No. 1 in the world.

Checking out our amazing venue. #Rio #ModernPentathlon @teamusa

A post shared by Margaux Isaksen (@margauxisaksen) on

25. Rieko and Akira Ioane

Both of Rieko and Akira's parents played rugby and the brothers joined New Zealand's rugby team in Rio for their first Olympic appearance.

26. Sharon and Nicole Acevedo

Rugby playing certainly seems to run in families with Sharon and Nicole playing in the Rio games, representing Colombia.

27. Becky and Ellie Downie

The British gymnasts (and sisters!) call themselves the Doubledownies. While Becky made her first appearance in the Beijing Olympics, Rio is the first time Ellie competed.

Massive GOOD LUCK to my other half @elliedownie tonight for her AA final. You got this sista !!! 💋

A post shared by Becky Downie (@bdownie92) on

28. Erik and Kawika Shoji

The Hawaiian brothers are making their Olympic debut on the U.S. men's indoor volleyball team. The brothers both played volleyball at Stanford prior to beginning their Olympic career.

29. Lisa and Anna Hahner

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Twin sisters hold hands at end of marathon: Heartwarming, or stunt?

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Twin sisters hold hands at end of marathon: Heartwarming, or stunt?

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These German twins came under fire for holding hands while crossing the finish line of the marathon in Rio. While they did not do as well as they hoped, they were grateful to finish hand in hand.

30. Caroline and Carmen Marton

For 26-hours a week, Caroline and Carmen Marton fight. It's not because of a sibling squabble; it's just how the two Australian sisters prepared for competing in taekwondo in Rio. While Carmen participated in Beijing and earned a medal in London, Rio marks Caroline's first games.

31. Juliana and Fernando Gaviria

These Colombian siblings both compete in cycling track and Fernando was named a Latin American athlete to watch during the Rio games.

32. Paul and Mark Gleghorne

While the brothers grew up in Ulster in Northern Ireland, they're playing for different field hockey teams during the Olympics — Paul for Ireland, Mark for Great Britain.

33. Omar and Amro El Geziry

Modern pentathlon is really a family affair for the El Gezirys. While the Egyptian brothers are the first brothers to compete in the event in the same games, Amro is married to Isabella Isaksen, who is competing in the individual pentathlon for Team U.S.A.

Rio here we go!#olympicgames #rio2016 #olympicvillage

A post shared by Omar Elgeziry (@omarelgeziry) on

34. Florencia and Agustina Habif

These Argentinian sisters play field hockey; Florencia already has an Olympic silver, while Agustina is hoping to earn her first medal.

35. Sanne and Lieke Wevers

These twins represent the Netherlands in gymnastics and Sanne gained attention after besting Simone Biles to win gold on the balance beam. This makes her the first Dutch gymnast to win any medal during the Olympics.

36. Deniz and Ates Cinar

These brothers sail for Turkey and Rio marks their third Olympics together.

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