not all of them but yees they do
Yes, keratin is found in birds, reptiles, amphibians, and mammals.
Alpha keratin is a protein present in hair,wool,nails, horns,hooves of mammals
No, dolphins have no fingers to have nails on. They also do not have claws or anything similar
Yes, dogs do have paws, just like most of all the other warmblooded mammals! Their paws contain 5 fingers with long nails on them. The "long nails" are called, 'claws'. I hope this answered your question!
Meaning of the toenail:=In human anatomy, a nail is a horn-like envelop covering the dorsal aspect of the terminal phalanges of fingers and toes. Nails are also present in several other primates. Although not exclusive to primates, the development of nails is extremely rare in other mammals.
Well most animals have nails but not many insects do; for instants a dog, cat, tiger, lion have nails; Also a kowala and sloths have nails. They people commonly call them claws. But they are the same thing. Hope this helped x :)
You can't really wear down there claws. Like all mammals, our nails will keep growing. If they get to long, simply cut them with nail clippers.
Nails (and finger nails) have volume.
Meaning of the toenail:=In human anatomy, a nail is a horn-like envelop covering the dorsal aspect of the terminal phalanges of fingers and toes. Nails are also present in several other primates. Although not exclusive to primates, the development of nails is extremely rare in other mammals.
Your nails protect your skin under your nails.
iron nails are nails made up of iron
metal nails rust ANSWER: Iron nails do.