Fossils of 444 million-year-old creatures whose bodies were preserved "inside-out" have been discovered in South Africa.

This can also be applied to dolphins. However, the clearest answer from this study is that of an animal that was already on Earth before the dinosaurs, being one of the first to inhabit the planet ...

In place of pterosaurs, birds became the dominant animals in the skies and the extinction of the non-avian dinosaurs allowed mammals to rapidly diversify and grow. While it would still be many ...

More than 230 million years ago, long before giant dinosaurs thundered across Earth, a chicken-sized creature walked near the ...

Long before the asteroid hit Earth and wiped out the dinosaurs, many mammals had already started living on the ground, according to new research led by the University of Bristol. This surprising ...

In just a few years, according to this hypothesis, these frigid and sweltering climatic extremes caused the extinction of not just the dinosaurs, but of up to 70 percent of all plants and animals ...

Scientists now know that dinosaurs evolved bird-like characteristics long before the appearance of Archaeopteryx ... and were pictured as enormous animals, hundreds of feet long.” “New discoveries ...