In many ways these are remarkably close to those of the birds of the world of today. Not that birds are ancestral to humans. No, we just have some of the same ancestors. I like rabbits. I think rabbits are terrific and make good pets and are soft and cuddly.
Rabbits are really good at surviving.
They adapt to a variety of habitats. But what rabbits do really, really well in is breeding. They don't have to think about who to mate with, whether the male will be a good provider, whether his coat is sleek or ragged, whether he can run faster than a fox or wiggle his ears. All a male rabbit has to do to mate is be there when the female is in heat. Rabbits have estrus.