Underwater vision They have a clear eyelid that protects their eyes and allows them to see in the water while they are swimming.
They have large, ever-growing, chisel shaped teeth. Gives them access to food that they couldn't reach without felling the tree like buds, leaves and bark of trees.
The beaver has a flat tail so it can communicate with other beavers
Webbed hind feet and a large flat scaly tail help them swim
Valves in ears and nose Special valves close as they dive underwater.
a digestive system primed to digest much larger prey than you might expect.
Starfish have developed protective shells and the ability to regenerate lost limbs for safety
They've also evolved structures to easily pry open the shells of their prey
Starfish are mostly carnivores and scavengers
The ability to regenerate amputated limbs and lost body parts is the starfish's most striking adaptation to its dangerous marine environment.
Large Size. Polar bears are the world's largest land-based carnivore
a small surface area to volume ratio - to minimise heat loss
Starfish are mostly carnivores and scavengers
they run on all four legs — so covering their nose with one paw would leave only three legs to hobble on
Polar bears have 42 teeth, which they use for catching food and for aggressive behavior
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