Claws


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Claws

 

horny formations at the ends of the digits of terrestrial vertebrates. In amphibians the claws are thickenings of the horny layer of the epidermis.

True claws are found on the majority of reptiles, all birds, and many mammals; they are used as auxiliary organs during ambulation and as weapons in active defense and attack. Claws are usually horny covers on the ends of the phalanxes of the fingers and toes; the upper side is formed from a hard cornaceous substance (claw layer), and the underside (cushion layer) is soft. The unequal wear of the two layers keeps the claws sharpened.

Claws in mammals are particularly varied: they are sharp and powerful in climbing animals, relatively thin and retractable in felines (weapons of attack), and large and thick in burrowing animals. In swimming animals claws have partially or completely disappeared. In mammals nails and hooves are variations of claws.

References in periodicals archive ?
Under Secretary at MET, Simeon Negumbo said that the policy was drafted about ten years ago and has been used by staff members as an internal guiding document for permitting and regulating the utilisation of devil's claw in the country.
Blue Reef's Anna Etchells said: "It's rare to find crustaceans with extra claws. Very little research work has been done on this so no one really knows why this sometimes happens.
Second best would be to use a modern German or Austrian scope for it in new claw rings.
Everything a claw hammer can do, a rip hammer can do better.
The researchers examined the role of a pair of claws at the tip of the gonopodium of the male guppy (Poecilia reticulata) - essentially the fish's penis.
Prices were high and the claws were on the smallish side.
We advise you to take your cat to the vet or groomer to have her claws clipped on a regular basis.
and the future he spreads with the claw's rusty teeth,
The Krapina eagle claws include three second talons from the right foot, so at least three birds are represented in the proposed ornament.
"Obviously, when I became involved in [Season 1 of] 'Claws' it was just for a few episodes playing Niecy Nash's love interest.
A crayfish with a 'Die Hard' will to survive cut off one of its claws to escape its fate in a boiling hotpot.