Wandering salamanders control their veritable grip by pumping blood into and draining it from translucent toes, as they glide ...

Was the Yorkshire tanager an escape? And why did news of the Booted Eagle in the Chilterns go out late? Our columnist ponders ...

Biologists have long debated why some plants and animals can adjust to a wide range of climates, while others can't.

Nation’s grassland birds, found in 14 states, have declined 43% since 1970, more than any other category, and are currently ...