For decades, biologists thought that early tetrapods, ancient vertebrates that started conquering the land over 300 million years ago, developed like modern amphibians—beginning their lives as purely ...

Learn how fish and amphibians have regions of vertebrae that may act like necks, challenging an common anatomical assumption.

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Frogs need water. Almost all of the world's 7,900 known frog species breed in fresh water. And when it rains, these amphibians erupt into a chorus of calls—croaks, trills, cheeps and bellows—to ...

Palaeontologists have found new evidence that the early ancestors of amphibians, reptiles and mammals did not have a larval stage with external gills like modern frogs or salamanders ...

In the quiet mountain villages of northern Portugal’s Peneda-Gerês National Park, centuries-old stone water tanks and irrigation channels may now be serving a surprising new purpose. Research ...

In the quiet mountain villages of northern Portugal, centuries-old stone water tanks and irrigation channels may now be serving a surprising new purpose. At Peneda-Gerês National Park, Portugal's ...

Northeastern Minnesota is the home of a low number of reptiles and amphibians (herps). Among reptiles, two kinds of snakes ...

Though not listed as endangered, northern leopard frogs have disappeared from most of their historical habitats in Arizona ...