Two unrelated questions:
I’ve noticed male dogs often seem to become somewhat aroused when they sit on their haunches… why? I can’t really say if maybe bitches also do, because it’s not quite as (typically the case is) awkwardly obvious.
I once lived somewhere where there was an old cross Alsation/husky or something, quite a large dog, and she had been spayed most of her life. Towards the end, she’d sometimes try to hump the other (female) dog, which was presumably some sort of dominance thing. My question is, how did she know how to hump? Is it common knowledge to dogs of both sexes? Do bitches hump people’s legs too?