Without these features, a terrestrial vertebrate cannot stand. Lungs and a pulmonary circulation replace gills.; no gill cover necessary. Lungs of early amphibian were not very different from those of ...

The earliest amniotes were reptiles, and are thought to have emerged from prehistoric amphibians in the late Carboniferous period roughly 318 million years ago. These early amniotes saw many ...

Brett Amy Thelen has been helping amphibians cross the street for 18 years. She knows to keep an eye out for nights that are wet and warmer than 45 degrees, conditions when amphibians are likely ...

But Kermitops gratus is a fossil of enormous significance, the scientists say. The early fossil record of amphibians and their ancestors is largely fragmentary which makes it hard to figure out ...