For over a century, a peculiar fossil has been a source of intrigue and debate among paleontologists. Its unusual ...

Instantly recognizable by their spiral shells, these ancient predators were relatives of modern squid and octopuses. Because ...

A fossil site in New Mexico with numerous dinosaurs, including the gargantuan Alamosaurus, dates to shortly before the ...

Ice cores, tree rings, and satellite data converge on a striking truth: Earth’s rapid changes today are unlike anything seen in human history. When most people hear the term Earth science, they ...

A trove of specimens from New Mexico may help settle a long-running argument about the diversity of dinosaurs before their ...

This 407-million-year-old species of clubmoss doesn’t follow the Fibonacci sequence like most of its living relatives.

Researchers have developed a novel application of histological staining to screen for ancient proteins in situ—within the ...

Newly discovered African fossils lend a hand to suspicions that an ancient hominid outside our own genus, Homo, made and used stone and bone tools.