BEDFORDSHIRE, England (WJW) – A zoo in England learned one of its rare fish may be the last of its kind in the world. Aquarists at Whipsnade Zoo have been caring for a critically endangered ...

While pursuing elusive fish species in each region, it's natural to ask: which of them is the rarest in the game? One may look at the Megalodon and its variants from the Ancient Isle to answer ...

In this Nevada wildlife refuge area, discover a mysterious geothermal pool that houses the world's rarest fish and extends hundreds (if not thousands) of feet.

Will this legendary Kansas catfish world record ever be beat ... (Getty Images) “Another hotbed for rare fish species encounters is the Spring River in far southeast Kansas,” Sowards said.

TOPEKA, Kan. — Some fish are harder to catch than others in Kansas but a rare few species are considered truly unusual to come across by the public or anglers casting lines at their favorite ...

In the Meratus mountain range of Indonesia, researchers discovered two new species of fanged frogs, Limnonectes maanyanorum ...

In rare video footage, a male whale shark has been spotted biting at his female partner during courtship. Before now, we knew very little about the secret sex lives of the world's largest fish ...

Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released recently in Cambodia, reviving hopes for the survival of ...

AZ Animals is a growing team of animals experts, researchers, farmers, conservationists, writers, editors, and -- of course -- pet owners who have come together to help you better understand the ...

Today we’re going to talk about the eight smallest known fish in the world. Some of these fish are commonly found in aquariums, and some are only found in small springs in Greece, but the one thing ...