Cat and Dog Claws
Location: Outside U.S.
Date: Spring 2013
Why do felines have retractable claws? Why don't canines?
Thanks for the question. I believe that retractable claws allow for better grasping when climbing trees and vines. Retractable claws also wear out at a slower rate than non-retractable claws.
I hope this helps. Please let me know if you have more questions.
Cat claws grow in a way to be sharp, very sharp for they are more efficient to hunt, climb and shred, but will often retract their claws when they run. This fact allows cats to survive by being an effective hunter where almost all dogs are human dependent because their claws are most for negotiating movement and not as effiicent for hunting. Now, if you have these incredible sharp claws, there are times when you do not want them involved in certain behaviors such as handling a liter of kittens, etc. Retracting these efficient tools, can be advantagous. Unlike my dog who will occasionaly unintentioanlly scratch if I do not trim his big, but dull claws, my cats are gentle with humans because their claws are retracted.
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Update: November 2011