Millions of years ago, apex predators in the Phorusrhacidae family lived up to their more common name—terror birds. The mostly flightless, meat-eating dinosaur descendents were the size of dogs at ...

In the vast plains of ancient South America, millions of years ago, a menacing shadow loomed over the grasslands. It wasn’t a dinosaur or a mammalian predator, but a colossal bird that dominated the ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

Prehistoric Earth was filled with all kinds of impressively scary animals. But one category of avians, an extinct clade called Phorusrhacidae, was so fierce that they ...