Female Rats and Mice have 12 teats.
12 teats of course of you are not sure go look and get killed little brats
There are six on both male and female.
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.)
The female has 13 teats.
When a baby mouse is six days old, its markings and colours are much more clear. This is also the day you'll begin to see the teats of the female mouse.
Usually, yes. But the teats on a bore are for no purpose.
10 teats is rather minimal. 12 teats is common. 14 teats is a good breeder. 16 teats is a superior sow.
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.
A mare has two teats.
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.
Female mice will mostly have from 6-12 babies at a time. Some Female might have more or less than that. There really is no right answer to this.