Only mammals nurse their babies.
Mammary glands are exclusive to mammals. This means teats are exclusive to mammals, but not all mammals have teats. The mammals that don't have them are the platypus and the echidna.
All mammals have teats, as they are how the offspring are fed milk.
She has them, so do male dogs (there are very few male mammals without teats, rats are one of the only species where this occurs). They do become more apparent with pregnancy
a cow
Monotremes are Australian mammals that are unique in several ways. First of all, they are the only mammals to lay eggs. Also, despite having mammary glands, they do not have teats. This caused great confusion when they were being classified, because mammary glands are one defining characteristics of mammals and the absence of teats made them difficult to locate.
Colostrum from the mothers teats.
They are called teats on animals. Yes, all mammals have them.
Yes, all mammals have nipples (aka teats).
Mammary glands (udders, breasts, teats, etc)
Teats are the elongated, nipple-like structures found on the mammary glands of female mammals, which are responsible for delivering milk to nursing offspring. In addition to mammals, the term can also refer to similar structures in some other animals. Teats play a crucial role in lactation, facilitating the feeding and growth of young animals. The number and arrangement of teats can vary widely among different species.
Because they give birth to live young and nourish them on teats.
Male pigs typically have the same number of teats as female pigs, which is usually around 12 to 14. However, male pigs do not use their teats for nursing, as they do not produce milk. The presence of teats in both sexes is a common anatomical feature in mammals.