Moor frogs (Rana arvalis) temporarily turning blue at the Ljubljana Marshes, Slovenia. It is thought that males turn blue during the mating season so they can quickly distinguish males from females among the dense frog populations
A Helen’s Flying Frog perches on a branch in Nui Ong Nature Reserve in Vietnam’s Binh Thuan Province. Australian biologist Jodi Rowley and Vietnamese colleagues have made a surprise discovery - a new species of flying frog gliding and jumping around less than 100 km (62 miles) from one of Southeast Asia’s busiest cities.
Pictured guarding a brood of eggs in its native northeastern India, the animal above is one of about six potentially new species belonging to a mysterious group of animals called caecilians. What’s more, the newfound critters represent an entirely new family of amphibians.