Which of the following is not an inherited trait?

jumping through a hoop

ear size

tail length

feather color

Jumping through a hoop.

I doubt any animal has ever inherited that trait.

jumping through a hoop

Explanation:

That is a conditioned response someone can have and cannot be inherited. See I like to think of the thing that animals are born with ears, tails, and feathers, but what animal is born jumping? It is usually actions that are not inherited.