How does a platypus nurse its young?

How does a platypus nurse its young?

Like all mammals, monotreme mothers produce milk for their young. But unlike all other mammals, monotremes like the platypus have no nipples. Their milk oozes out of mammary gland ducts and collects in grooves on their skin–where the nursing babies lap it up or suck it from tufts of fur.

Why do echidnas lay eggs?

The other egg-laying mammals are four species of echidna. (Image credit: Gerry Pearce, australian-wildlife.com.) The reason that odd, egg-laying mammals still exist today may be because their ancestors took to the water, scientists now suggest.

Are animals that give birth to their babies and feed them milk?

They feed their babies with their own milk. These animals are known as mammals. Animals that give birth to babies are called mammals. So, the animals, reproducing the babies of their own kind, by directly giving birth, are called mammals.

Do any animals not have Buttholes?

Despite this, some types of animal cope even though they lack a digestive tract, including sea sponges (Porifera) and tapeworms, for example. These species, perhaps obviously, also lack an anus.

Why do men have nipples?

The reason women live longer, it said, is because their cells are better at repairing damage in later life. Men have nipples because embryos are always female in their early stages, and males only differentiate from the female prototype after a few weeks.

Do any birds have nipples?

Birds don’t have nipples, as they are not mammals. Here the term breast is used to describe the pectoral muscles birds use for flight. Some birds, such as pigeons and doves, do feed their young milk, which is a secretion from the lining of the crop, a muscular pouch that forms part of their digestive tract.

Did dinosaurs have nipples?

Only mammals give milk produced by mammary glands, and secreted through nipples or (in very, very primitive mammals) pores in the skin on their chests and bellies. Reptiles, including birds (which are a type of dinosaur), don’t have mammary glands, and of course they don’t have nipples.

What does pigeon chested mean?

Pectus carinatum

Which is the bird that can fly backwards?

Hummingbirds