A study shows that rainfall controls tropical bird breeding by triggering the growth of plants and insect populations.

A palm cockatoo chick fledged from an artificial log hollow installed on a tree as part of People For Wildlife’s Breeding ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

It’s a sound somewhere between a hoarse car alarm and a braying donkey. Barely visible through the foliage from ground level, the source of the racket sits in the upper branches of a decades-old ...