If you have never seen birds employing ants for pest control duties, you need to take a look at this fascinating clip. At first glance, it looks like a great example of a symbiotic relationship and ...

POTAMOS ANTIKYTHIRON, Greece (AFP) — Gently holding a blackcap warbler in his palm, ornithologist Christos Barboutis blew on its feathers to reveal the size of its belly: a good indicator of how far ...

(CNN) — On a remote, crescent-shaped island surrounded by crystal-clear ocean live some of the most plastic-contaminated birds in the world. They have bellies so full of fragments, they crunch when ...