All of them. Or very nearly so; it's a rare baby indeed that needs to do it twice.
i believe a shark has a baby one at a time.
i think that atleast 4 baby pandas can be born at a time
Bats usually have one live young at a time. Ocassionally, twins are born.
Usually one, for the species is desiged to handle one offspring at a time.
A mother caribou usually has one baby at a time, twins are rare.
It is unusual to bear more than one.
Females can have up to 15 cubs.
A female chimpanzee normally gives birth to just one baby. It is very unsusal for more than one baby per pregnancy.
One chimp baby at each pregnancy is normal. Twins happen, but very rarely.
Most large mammals- including the moose- have only one offspring at a time.
One baby at a time.
Usually one.