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Commonwealth Games: Marine life edition

03 Jul 2026

2 minute read

Our shores are full of diverse marine wildlife, home to species just as remarkable as those found further afield. If British marine life was to compete in the Commonwealth Games, they would surely be in the pool of medals.

Artistic gymnastics: Sea angel

With their wing-like fins, elegant appearance and graceful gliding, sea angels are the obvious choice for floor exercise in artistic gymnastics. These free-swimming sea slugs are truly mesmerising to watch, moving through the ocean in fluid, pulsing motions.  

Dizziness or fatigue from repeatedly twirling will cause them no concern – during their mating ritual, these creatures spin for hours in a captivating dance. Overall, the sea angel is bound to get a near-perfect score for composition and execution. 

A translucent small sea slug with wing-like appendages. The tip of the tail and eye area have an orange tint.

Image credit: Kirsty Andrews

Bowls: Common octopus

The common octopus is the definite choice for the bowls team. Each of its eight arms has its own ‘mini brain’, allowing them to act independently. This gives the octopus more control of its movements and use sensory information to determine where to aim the ball. 

The common octopus is also highly intelligent, enabling it to devise a playing strategy and drive and draw the ball with accuracy. Using their jet-propulsion ability, they can shoot forward – momentum that’s required for those all-important weighted shots.

These traits, coupled with the octopus’s ability to walk and the suckers that prevent it wobbling as it whips the ball with great speed, are sure to secure the common octopus a win at the Commonwealth bowls games. 

If all else fails, it can use its inky defence mechanism to sabotage the competition. 

Learn more about the common octopus
Common octopus closeup of head and eyes with texture and yellow red skin colour

Image credit: Cathy Lewis

Boxing: Conger eel

We know what you’re thinking, how can a conger eel box if it has no arms? Well, this creature doesn't need them to be champion of the ring.

Growing to 3 metres long and typically weighing up to 25kg, these muscular animals have some serious weight behind their attack. They hide in holes, crevices and caves, lying in wait for prey before bursting forth with incredible speed and power.

Conger eels are aggressive and territorial, lunging with a fast sideways snap of the head at creatures that come too close. Their streamlined bodies and powerful tails allow them to move quickly, ducking out of the way of competitors’ punches.

With their large, round eyes, sharp teeth and powerful jaws, the conger eel might just intimidate you to throw in the towel.

Learn more about the conger eel

Image credit: Jérémy Capelle

Judo: Shore crab 

The shore crab would be a fierce and agile contender in marine martial arts. They are known for their territorial behaviour and are no strangers to engaging in fights – whether that’s for hiding places, food or mating opportunities. Their powerful pincers enable them to grasp and pinch their opponents, snatching the opportunity for medals in the process!

Their ability to grapple and manoeuvre makes shore crabs the perfect choice for the judo category. Their natural tendency to move sideways means they can rival the moves of even the best judoka. This helps them to maintain balance, execute throws and avoid grabs, while their low centre of gravity makes them difficult to tip over and help them to resist throws and remain stable.

Learn more about the shore crab
A green/brown shore crab perches on a rock covered with life, we can see pink anemones and starfish.

Image credit: Mark Kirkland

Swimming: Blue shark 

Although it typically swims at a cool 1.5 miles per hour, the blue shark can reach speeds of up to 43 miles per hour – making it one of the fastest shark species and a perfect candidate for swimming. These extreme speeds are reached through sudden explosive bursts, much like when the swim team set off at the sound of the whistle. 

Its long, sleek appearance and the small tooth-like structures covering its skin enable the blue shark to be hydrodynamic, so it can torpedo through water at top speeds.  

As an apex predator, blue sharks are also likely to scare the competition, making them too afraid to move or forcing them to flee the pool altogether. 

Learn more about the blue shark

Image credit: Kirsty Andrews

Athletics: Atlantic bluefin tuna

The Atlantic bluefin tuna is a super speedy powerhouse, making it the best choice for the athletic races. It can reach speeds of up to 43 miles per hour, helped by its streamlined, torpedo-shaped body, while its well-developed circulatory system and large gills allow it to extract oxygen from the water to sustain its high-energy sprints.  

As well as speed, this fish is known for its long migrations which require stamina and endurance, making it a great choice for long distance events as well as sprints.

Bluefin tuna can be seen swimming in Cornish water. The fish in the foreground can be seen from the side with incredible yellow finlets. In the background is another large tuna which looks shadowy in the dark blue water.

Image credit: Mark Kirkland

Commonwealth clean oceans plastics campaign

This year, Commonwealth Sport is partnering with the Royal Commonwealth Society to tackle plastic pollution. The Commonwealth Clean Oceans Plastics Campaign is bringing together athletes and communities to prevent one million pieces of plastic from entering Commonwealth waterways before the Commonwealth Games start. This campaign has formed a central part of activities during the King’s Baton Relay, shining a light on initiatives taking place in each nation and territory and bringing together communities to clean up plastic around waterways and oceans.

Y Môr a Ni, the Welsh Ocean Literacy Coalition (WOLC), teamed up with Team Wales for the King's Baton Relay in the lead-up to the Glasgow 2026 Commonwealth Games, reflecting the importance of Welsh seas and coasts to Wales' culture, identity and heritage. 15 WOLC partners hosted seven events to celebrate the marine environment across Wales and the community champions who help protect it. Events included shark eggcase hunts, seagrass snorkelling, guided nature walks, rockpooling and boat trips!

The Marine Conservation Society sits on the Steering Group of the Welsh Ocean Literacy Coalition, supporting the implementation of the Welsh Ocean Literacy Strategy, the second national ocean literacy in the world.

Our Beachwatch data has consistently shown plastic pollution is a blight on our beaches and in our ocean. Alongside our amazing volunteers, members, supporters and corporate partners, we're working hard to clean up beaches, stop pollution at source and regenerate our seas. If you'd like to help, why not sign up for a beach clean today?

Marine Conservation Society

03 Jul 2026