We present below some pictures of different mammals feeding or nursing their babies. They are very sweet, cute pictures of a precious relationship between mom and baby.
The same is true of humans: breastfeeding is about nurturing one's child with the best food possible, at the same time providing comfort and closeness. It is very special and precious.
You probably learned in school the definition of a mammal: a mammal is an animal that gives milk to its young, and that has hair. The organ that produces the milk is called a mammary gland (in humans, mammary glands are called breasts).
Some people mistakenly think that only humans have enlarged mammary glands (protruding breasts). But that is not true. The udders of goats, sheep, and cows are their mammary glands — corresponding to the female breasts. The udder is quite visibly large even before the animal starts lactating. (Naturally, during lactation it is even bigger).
Aren't those animal nursing pics cute? How much different is it then when you see a nursing mom? It's not. Humans are mammals, too. The purpose of female breasts is to produce milk for the offspring. It's still just about nourishment, bonding, and being close.
