My favorite cat that traveled so well in his crate disappeared and I rescued a cat at the shelter = less than one year old but not really a kitten. She hates the crate and howls I have seen some...
Wow that is interesting, Walter. Never heard of it with a dog. Cats are animals that are VERY much oriented to territory. Watching all that real estate just fly by tends to stress them out. Dogs as a species are more into migration and so aren't typically that way but maybe since GSDs are control freaks it could have a similar effect?