How are other mammals nourished in the womb?

I was talking to my husband today, and that came up for some reason. He says that only humans have umbilical cords and belly ons. But that seems wrong to me. I think I've heard somewhere that cows have umbilical cords. Anywho, I feel silly that I don't know this already...but can someone help set us straight? Do other mammals have umbilical cords and if so, how is it detached without harming the baby or mother (like if it's done wrong with humans, they bleed out) in nature? And if not, what do they have for en utero nourishment?