A tiny river fish, the Amazon molly, has survived 100,000 years without males, revealing alternative ways life maintains ...

All-female species have been long thought of as evolutionary dead ends – but one fish has defied the odds to live without ...

In the rivers of Mexico and southern Texas in the United States, a silvery-scaled fish swims that seems, according to ...

Increasingly prolonged and intense droughts in the Amazon pose a deadly threat to the native Amazonian manatee, lowering river levels that expose these giant aquatic mammals to poachers.

It may sound too bizarre to be true, but the Amazon molly (Poecilia formosa), a fish that inhabits rivers, lakes, and swamps ...

(CNN) — Picture a dolphin. Now imagine one that’s twice the size of a person. Around 16 million years ago, a dolphin giant cruised the depths of its watery domain. But unlike most modern dolphins, its ...