How to create a catalog of fish eggs to make it easier for aquariums to raise rare fishes.

Abnormalities in the ear bones of hatchery-reared delta smelt could challenge efforts to save the endangered fish.

The developers of a new, easy-to-use, low-cost device are looking to make the deep sea accessible to everyone.

Aquarists at the Monterey Bay Aquarium have spent years learning how to keep deep-sea animals alive in captivity for a new exhibit. In...

Whether for survival or for friendship, male sperm whales travel the seas with the boys.

The octogenarian snapper, the oldest tropical reef fish discovered to date, suggests reef fishes could grow to be even older—if we let them.

A new study highlights the treasure trove of data trapped in seaweeds over a century old.

Capturing up-close-and-personal animal encounters on camera can help garner public support for conservation, but at what cost?

Altrichthys damselfish dote on their young as well as the young of other Altrichthys parents and other species.