Dinosaurs first appeared around 230 million years ago, coexisting with large crocodile relatives and massive herbivores.

A study of fossilized feces and vomit attempts to piece together why dinosaurs were so evolutionarily successful.

Astronomers at UC Berkeley have identified mysterious Earth-sized spots at Jupiter’s poles with rapid life cycles.

Research Reveals Iconic Ancient Fossil ‘Lucy’ Last Hours on Earth, Suggest She Was in Danger and Not Alone Paleoanthropologist Donald Johanson and his team on the International Afar Research ...

Analysis of 200-million-year-old digested foods reveals how the animals became dominant.

Large-scale disruptions to life may ultimately increase ecological complexity over geologic timescales, though the risk of ...

Venus, often called Earth's "evil twin," is a world of extremes, making it the most dangerous place to launch a spacecraft in ...