Poison frogs appear to have built their chemical defenses gradually: related frogs store low to moderate levels of ...

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When I got my first look at Boulenger’s backpack frog, I thought the poor thing was suffering from the world’s most unpleasant skin disease. The frog in this video appears to be wearing a cluster of ...

The development of hair was of central importance for the evolution of mammals and thus also of humans. However, the evolutionary origin of the genetic program of hair was previously unknown.

LOS ANGELES - Researchers at the Smithsonian's National Museum of Natural History have stumbled upon the fossilized skull of a 270-million-year-old amphibian forebear. As per the discovery published ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have discovered evidence of a prehistoric species of amphibian that could be the precursor to modern species − and they ...

Frogs have hopped about Earth since before the time of the dinosaurs, and it shows. Celebrated for their amphibious lifestyle and cacophonous choruses, the long arc of frogs’ evolution has yielded ...

Australian tree frogs today make up over one third of all known frog species on the continent. Among this group, iconic species such as the green tree frog (Litoria caerulea) and the green and golden ...