It depends on a variety of factors. If he is molting excessively, it might be fleas, mites, or a variety of other parasites. The claws do that naturally with aging. If you are very worried, consult a vet.
Canary molting can be influenced by various factors, including age, diet, and environmental conditions. If your canary is not molting, it could be due to inadequate nutrition, as a diet lacking essential vitamins and minerals can impede the molting process. Additionally, stress or changes in the bird's environment, such as temperature fluctuations or lack of proper lighting, may also affect molting. Lastly, some canaries may simply have a slower natural molting cycle.
because the bark of a tree could damage the cat's claws and the cat could get hurt badly.
a lobster can crack a shell with its claw and the claws help the lobster protect its self from predators
A fungal infection could cause those symptoms.
A yellowish, discolored throat with red spots and a cough could be a sign of an allergy, upper respiratory infection, bruising, cancer or any other number of ailments. If symptoms persist or worsen, it would be best to get checked over by your doctor.
Cave lions had claws that could grow up to 4 inches in length. These large claws helped them to catch and hold onto their prey effectively.
when they are shedding which is called molting it makes their new skin very soft and they could get hurt easily
Yes, I would say porcupines have claws you just do not see them because of their sharp beck you could say.
You could just take them to a vet
it could be afraid or it could be climbing up something or down something
Common causes could be a power surge or overheating.
No. it could easily be stepped on or thrown off the tree. it is the safest stage of its life though.