They are livebearers, meaning they give birth to live young, which can be fascinating ... Corydoras catfish are small, bottom-dwelling fish known for their peaceful nature and social behavior.

The young and the mother each follow ... abandoned snail shells in which they raise their offspring. Although these cichlids are a popular aquarium fish, what goes on inside the shell has, until ...

The latter four anatomists have plainly shown that while the external appearance of the tail of modern bony fishes is, as we have seen, homocercal, their real ... “On the Young Stages of some ...

While most fish reproduce by laying eggs, some species are live-bearing, or viviparous, and carry their offspring internally.

describe experiments in shell-dwelling cichlid fish (Lamprologus ocellatus ... Mothers cared for their young and confined them to the shell until the larvae emerged (pictured), nine days after ...