Whales have flippers which are modified front limbs used for swimming rather than walking.

Seals have flippers as well, which are specialized for swimming and navigating in water.

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Penguins have flippers that they use for swimming through the water, rather than walking on land.

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Snakes

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Sloths

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Bats

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Dolphins

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Whales have flippers which are modified front limbs used for swimming rather than walking.

Whales

Seals have flippers as well, which are specialized for swimming and navigating in water.

Seals

Penguins have flippers that they use for swimming through the water, rather than walking on land.

Penguins

Snakes

Snakes have evolved from animals with legs, but they have adapted to move using their muscular body and lack traditional legs.

Sloths

Sloths have limbs, but they are adapted for hanging and moving through trees rather than walking on the ground.

Bats

Bats have wings that are modified arms with a thin membrane of skin, enabling them to fly rather than walk.

Dolphins

Dolphins have evolved from land animals and have adapted their limbs into flippers for efficient swimming.