A new look at fossils from the Cambrian Period around 500 million years ago has revealed that some of the earliest animals spent time on mudflats that were sometimes exposed to the air – a find that c ...

Dinosaurs long dominated Earth’s land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus ...

Researchers have discovered a 149-million-year-old bird fossil in southeastern China, featuring a short tail structure that ...

Roughly half a million years ago, a group of armadillo-like mammals, horses, and sloths met their end in a sinkhole in what ...

Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which ...

But, alas, the mosasaurs were not dinosaurs. As with plesiosaurs, the biggest giveaway is its habitat: “With the exception of ...