No he isn't
It's usually a wooden shelter in the zoo~but if you mean in the wildlife then it's usually on the floor bed of the jungle.
Do some little exercises with her or him and try not to overdo the walking just short walks but if he/she continues to limp take your dog to the vet!
Well they are all from the cat family they kinda have the same shape of the face as well but the pattens are not alike at all!