Livebearers are a fascinating group of fish from fresh and brackish habitats. These fish reproduce by giving birth to free-swimming babies rather than laying eggs. The most popular live-bearing ...

A few might be livebearers instead of egg layers, but without question more than 99% of the world’s animals described to date lay eggs. One nonmammalian that births live young is the mosquitofish.

A few might be livebearers instead of egg layers, but without question more than 99% of the world’s animals, whether yet discovered or not, lay eggs. One non-mammalian that births live young is ...

Mollies are livebearers — fish that give birth to live babies instead of eggs — and females can have up to 100 fry (baby fish) at a time.