Evolution

The extinct giant canids were a remarkable example of convergent evolution

Unlike humans, wolves can subsist on protein alone for months—so scientists say we may have lobbed leaner leftovers their way. Christopher Intagliata reports.

Unable to digest large amounts of protein, hunters likely left scraps that could have led to the taming of wolves

The most comprehensive study of the iconic dinosaur reveals a very different animal from the one portrayed on film

Cells need to cooperate to coexist in people, and when some break the rules, cancer results

Environmental journalist Ben Goldfarb talks about his book Eager: The Surprising, Secret Life of Beavers and Why They Matter.

Juvenile ravens performed just as well as chimps and orangutans in a battery of intelligence tests—except for assays of spatial skills. Christopher Intagliata reports.

Fossils of small, delicate animals may reveal the early history of gigantic flying reptiles

X-ray scans of ancient Egyptian cat, bird and snake mummies show details never seen before

Under the right circumstances, indiscriminate mating with both males and females can enhance animals’ evolutionary success

Evidence of the ancient humans was limited to a cave in Siberia. But now scientists have found genetic remains of the Denisovans in China. Christopher Intagliata reports. 

Charcoal dating back nearly 2,000 years show the ancestral Puebloans used the ice for drinking water during droughts