Ok, I understand that to some people, these are pretty disturbing, but it's a dog having pups people, you think it's not messy? lol Anyway, this is the first one and I'd never seen puppies born before but they come out in a sac, it's black because the puppy was black, and once it's out she eats the sac off the pup and licks it clean, it's actually kinda beautiful if you look at it that way. But if you look close in this pic, you can see th puppy's foot pressing against the sac.