babies

[heynow1256]

what animals can't have babies

[New Forester]

All animal species reproduce -- they don't last long if not. Of course it's only the females which actually produce young... But babies? Most animals lay eggs rather than have live babies, but of course the eggs hatch into some kind of baby. It's not just mammals which bear live babies -- others which do it include greenfly, some reptiles, some flies, some sharks, and some other fish, such as guppies. In a few groups of animals, not all individuals are fertile -- for example, termites, and social wasps, ants and bees. In these only a few "queen" females (usually one in each nest) are fertile and lay eggs, while most of the other females are infertile "workers" which don't normally lay eggs.

[boognish76]

Mules can't have babies.

[vittoria]

Also the "onager" or "wild ass" which is the opposite of a mule - a mule is the offspring of a male donkey and a female horse, the "onager" the other way round - so I gather.

[mrs.pudding]

male ones

[New Forester]

Vittoria - The onager is a wild species which has males and females like any other. You're thinking of a hinny. These are, as you say, the opposite cross to a mule. However, they are rather more fertile than mules, and I think female ones can sometimes have foals.

[DOB]

I think I read somewhere that the seahorse is the only creature (land, sea, or air) where the male actually gives birth/carries the young.

[caroline1983]

When the sea horse conceives it is neither done inside the female or the male. It's done outside of the body and then the male carries it to full term.

[Romeo]

amoebas