Kittens appear to adopting to EV's much faster than puppies. Have yet to see a puppy making a new home in a Tesla. It may be that after having generations of cats seeking warm engine bays for shelter only to have to deal with the dreaded fan on startup they have evolved and realize the Tesla is a safe place for them
Elon today:
Kitten stuck in my Model X rear bumper!
And in 2015:
Elon today:
Kitten stuck in my Model X rear bumper!
And in 2015: