L ove — or at least sex — was in the air of the small, windowless, biosecure room at the Fort Worth Zoo in Texas. Sixteen rectangular, clear plastic bins lined the room’s back and side walls, tiny ...

Texas researchers didn’t expect to discover a “milestone” in the revival of the state’s official reptile. Staff members at Mason Mountain Wildlife Management Area in the Hill Country had been ...

In the wild, some parents welcome hundreds, even millions of babies at once and often rely on numbers for survival. Here are ...

BOZEMAN (AP) — David Quammen had just returned from west Africa, where he'd spent two weeks wading through the swamps, and he was feeling lucky because he never got malaria. ‘‘I only got a few ...