Can horses navigate stairs?

It's actually a common belief that horses (and cows) can't go down stairs. Anyone who's done serious trail riding knows the idea that a horse won't go down a steep slope because "they can't see properly" is...well, not true. Horses do prefer not to go down stairs or very steep slopes, and have been known to get "stuck" on decks not because they can't get back down the stairs but because they don't want to. Donkeys have far fewer problems with steps.