Imagine a world where the boundaries between “fish” and “not-fish” blur, where the ancestors of birds and mammals once swam ...

Keywords amphibians, evolution, Devonian period, fish-like ancestors, adaptation, life cycle, thyroid gland, larvae, bony fins, three-chambered heart More for You ...

Robert Carroll, a vertebrate paleontologist at McGill University who helped combine paleontology with evolutionary biology and genetics, died on April 8 as a result of COVID-19 at the age of 81. He ...

Amphibians were also growing in size and diversity. There were predatory species that resembled modern-day crocodiles. Armed with vicious teeth, they reached lengths of almost 20 feet (6 meters).

The only known example of Paracyclotosaurus davidi, an amphibian that lived in Australia around 235 million years ago. The collection contains 400 specimens and 46 type specimens, mostly of ...

In 2004, a field crew digging in the Canadian Arctic unearthed the fossil remains of a half-fish, half-amphibian that would ... which clearly indicate Darwinian evolution in action.— ...

The amphibian deformity question will intrigue students for several reasons. First, seeing pictures (see resources) of the deformities is just interesting (and for some, gross at the same time).

To date, 588 sites encompassing 920 threatened species of mammals, birds, reptiles, amphibians, conifers and corals have been identified. The goal of such efforts is to prevent the most imminent ...