Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who ...

The Mexican tetra lives in freshwater streams and pools from Mexico up into the southern United States. But these fish also live in cave systems in at least 29 separate places in Mexico, where they ...

Alface is a two-toed sloth. She will be an ambassador for her species, helping guests connect with wildlife from the Amazon ...

This homemade bottle trap turns a regular creek into an exotic fish treasure hunt. The moment it comes up, bright colors ...

Dunkleosteus belonged to a group of ancient, armoured fish known as the placoderms. These fish lived during the Silurian and the Devonian periods - between 440 and 359 million years ago - and they ...

The engineers at the University of Surrey are behind Gillbert, a robotic fish designed to filter plastic out of our water.

Ozzie Albies pulls up a video on his phone, pushing it excitedly into my line of view. He's not showing me some big home run he hit or some diving play at second base or even the time he whacked a ...