![]() ![]() Crabs', lobsters' and scorpions' pincers, or more formally, their " chelae", are sometimes called claws.Ī true claw, (as opposed to a chela) is made of hard protein called keratin. Somewhat similar fine hooked structures are found in arthropods such as beetles and spiders, at the end of the leg or tarsus for gripping a surface as the creature walks. However, the word "claw" is also often used in reference to an invertebrate. ![]() ![]() A claw is a curved, pointed appendage, found at the end of a toe or finger in most amniotes ( mammals, reptiles, birds).
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