page_title: Claw
hierarchical_section_title: Claw
caption_attribution_description: English: Close up of the claw of a cat 日本語: 猫の鉤爪。真ん中のピンク色のものは神経である。 Tiếng Việt: Vuốt mèo chụp gần
context_page_description: A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes. Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or tarsus for gripping a surface as they walk. The pincers of crabs, lobsters and scorpions, more formally known as their chelae, are sometimes called claws.
  A true claw is made of a hard protein called keratin. Claws are used to catch and hold prey in carnivorous mammals such as cats and dogs but may also be used for such purposes as digging, climbing trees, self-defense and grooming, in those and other species.
  Similar appendages that are flat and do not come to a sharp point are called nails instead. Claw-like projections that do not form at the end of digits but spring from other parts of the foot are properly named spurs.
context_section_description: A claw is a curved, pointed appendage found at the end of a toe or finger in most amniotes (mammals, reptiles, birds). Some invertebrates such as beetles and spiders have somewhat similar fine, hooked structures at the end of the leg or tarsus for gripping a surface as they walk. The pincers of crabs, lobsters and scorpions, more formally known as their chelae, are sometimes called claws.
  A true claw is made of a hard protein called keratin. Claws are used to catch and hold prey in carnivorous mammals such as cats and dogs but may also be used for such purposes as digging, climbing trees, self-defense and grooming, in those and other species.
  Similar appendages that are flat and do not come to a sharp point are called nails instead. Claw-like projections that do not form at the end of digits but spring from other parts of the foot are properly named spurs.
caption: A domestic cat's retractable claw in protracted position
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