Birds are living dinosaurs whose ancestors include T. rex and giant penguins. Understanding their past can help us imagine ...

Between 50,000 and 10,000 years ago, many of the world's largest mammals disappeared. Picture creatures like saber-toothed ...

Discovery bolsters theory that ancient mitochondria formed brand-new, specialized ‘sacs’ in cells by shedding their outer ...

Most of us have encountered squids at a seafood restaurant or during an aquarium visit, but understanding their actual nature ...

When our distant ancestors first traded nomadic life for farming, villages, and permanent homes, you might assume that the ...

A newly discovered prehistoric mammal may hold clues to how life survived the dinosaur-killing extinction. The tiny species, ...

The evolutionary case for eating meat is etched into human anatomy — but so is the case against it. The science deserves more ...

A new study reveals how a remarkable group of plants on the Galápagos Islands developed their diverse leaf shapes—offering ...

Coincident with the rise of the dinosaurs, a large landmass filled most of the Arctic circle, potentially contributing to ...

For decades, scientists have traced the connection between small theropod dinosaurs and modern birds. Fossils such as ...