• anon6789@lemmy.world
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    17 days ago

    They’ve inherited a third leg joint, the tarsus, from their dinosaur ancestors. (Green)

    It works with their system of tendons to make a clenched foot the relaxed state. This lets them hold onto prey or a branch while they sleep at maximum force without having to constantly export force, it just happens.

    The toes also have an internal ratcheting lock to aid that grip. See how the red and blue ridged sections lock when the foot is clenched.