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An international team of American and Chinese paleontologists has discovered a new species of mammal that lived 125 million years ago during the Mesozoic Era, in what is now the Hebei Province in ...

Bony fishes are the most diverse of all extant vertebrate groups. A comprehensive phylogenetic analysis of the group now provides new insights into its 250-million-year evolutionary history. More than ...

This documentary explores the unusual evolution of Dromaeosaurs, the strange carnivores that defied typical dinosaur design. Scientists reveal how their mix of feathers, oversized claws, and agile ...

The Mesozoic ocean may have been one of the most dangerous places in Earth’s history, filled with predators that still feel unreal today. Fossils reveal massive jaws, strange body shapes, and hunting ...

In the Mesozoic, the time of the dinosaurs, from 252 to 66 million years ago, marine reptiles such as ichthyosaurs and plesiosaurs were top predators in the oceans. But their origins and early rise to ...

When searching for exoplanets with potentially habitable atmospheres, astronomers really only have Earth as an example of what to look for. But a new study says that a past era of Earth may be a ...