Readers show that it's easy being green with the latest Readers Photo Challenge. Twelve readers sent in 78 photos; here are ...

Deep in the rainforest of Madagascar, a small, bright green creature hops along the forest floor. The little amphibian spends its days hiding from the bright sun and its nights hunting and calling ...

Deep in the rainforest of Madagascar, a small, bright green creature hops along the forest floor. The little amphibian spends its days hiding from the bright sun and its nights hunting and calling ...

Green is a color that’s so ubiquitous that it often goes unnoticed or overlooked. In the song “It’s Not Easy Being Green” ...

Deep in the rainforest of Madagascar, a small, bright green creature hops along the forest floor. The little amphibian spends its days hiding from the bright sun and its nights hunting and calling ...

Scientists in Western Australia have found a tree frog which is bright blue, rather than the usual green, due to a rare genetic mutation. The blue magnificent tree frog was spotted in the Charnley ...

An Australian biologist and Vietnamese colleagues have made a surprise discovery - a new species of flying frog gliding and jumping around less than 100 km from one of Southeast Asia's busiest cities.