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In reptiles, the limbs are pentadactylous.

Dogs have tetradactylous paws but the dewclaw makes them pentadactyls. Cats also have dewclaws on their front limbs but not their hind limbs, making them both pentadactyls and tetradactyls.

Tetradactyly

Tetradactyly (from Ancient Greek ?????- (tetra-), meaning "four") is the condition of having four digits on a limb, as in many birds, amphibians,

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