After nine months, the strange behavior that claimed the lives of endangered sawfish is back. Here’s what we know about ...

Once dubbed the "world's ugliest animal," the blobfish – scientific name Psychrolutes marcidus – has been named New Zealand's ...

A New Zealand-based nonprofit announced the blobfish as the winner of its "Fish of the Year" vote, years after it was named ...

What is a betta fish? Betta fish—also known as Siamese fighting fish—are among the oldest species of domesticated fish. Their scientific name, Betta splendens, combines two languages ...

In this video, learn how mammals, fish and insects' circulation systems move blood around their bodies. Stay close, please, children. We are here at the riverbank to look at the way different ...

Scientists and Indigenous community members documented 27 new-to-science species in Peru’s Alto Mayo region, including four new mammals and a bizarre “blob-headed” fish that was already well ...

The fish were well distributed throughout the Los Angeles, San Gabriel and San Bernardino rivers historically, where they have vanished from nearly 95% of their historic range since the 1970s and are ...