A bird. Birds feed their young food they find. I believe that any animal that is not a mammal does not have nipples.
Platypus, they sweat milk and it's children lick it's fur, unlike most mammals that have nipples.
Cow is a good example of animal with four nipples for breast feeding.
An animal that has live young and feeds them on her nipples (mammalia)
Most do
no, if u r cold your nipples tend to get hard. Women will most always get hard nipples when aroused and most men wont, but some do. if u r Mae and get hard nipples when aroused it doesnt mean theres anything wrong it just happens.
The Nipples are most sensitive.
Nipples
Most definitely not.
It most likely does not have any.
Most females nipples go hard when excited, cold or Wet. Dont know if that helped.
Most gay men enjoying having their nipples pinched, sucked, bite on while having sex. Overtime their nipples will become more erect and grow in size. A: What rubbish! Gay men's nipples are just the same as any man's.