A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

A male panther tipped the scales at a whopping 166 pounds recently after biologist tracked down the big cat. The Florida Fish and Wildlife Conservation Commission, or FWC, says it's the largest ...

Florida biologists captured the heaviest panther ever recorded in the state as part of a research program into the endangered animal. The adult male panther weighed 166 pounds, according to the ...