breathinginbiology:Some species of crabs have a pair of paddle-shaped rearmost legs that allow them to swim through the water instead of being limited to walking along the ocean floor.

tentacles | tessa fowler gifs | PupPlay

breathinginbiology:Some species of crabs have a pair of paddle-shaped rearmost legs that allow them to swim through the water instead of being limited to walking along the ocean floor.

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