How do fish reproduce?: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Last updated

Oct. 26, 2026

Photos

Image of tropical fish in a coral reef.

See All Images →

Topics

Animal reproductive system fish Do fish drink water?How do fish sleep?How do fish breathe?Why are fish high in mercury?pregnancy chondrichthyan birth 10 of the World’s Most Dangerous Fish eel lungfish