No. The young echidnas suckle milk from milk patches on the mother's skin.
Yes. All mammals have mammary glands. That is how they produce milk to feed their young.
No. Echidnas do not have nipples, but exude milk from specialised sweat glands which run into grooves on their abdomen.
There is no specific name given to a female echidna. It is just a female echidna.
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.
A female echidna does not have any particular name. It is just a female echidna.
Female Rats and Mice have 12 teats.
Usually, yes. But the teats on a bore are for no purpose.
Yes. Both the male and female echidna have equally sharp spines.
12 teats of course of you are not sure go look and get killed little brats
Pregnant or not, cats usually have 8 teats. It is possible for them to have extra, so-called "supernumerary", teats. (This can occur in dogs and humans, too.)
They are called teats on animals. Yes, they get teats when they are pregnant. They have them when they are not but they remain small. When a female gets pregnant the teats will expans to help with milk production to feed the babies.
There are six on both male and female.
That would be quite unusual. It's likely that the dog does have teats but if she has not been bred they are very small. If you look closely you should see some indication of teats along their underside.
She will gain weight and get swollen teats.