American psychologist Joseph Jastrow made this illusion in 1899 – to make a point about how the brain perceives what is in ...

These large, flightless birds have powerful, muscular legs and tough, prehistoric-looking feet with claws that can deliver a ...

Scientists look inside the fossilized stomach contents of a massive dinosaur. And, why some birds listen for prairie dogs’ ...

Paleontologists have carried out CT scans of a dinosaur egg and the skull of a Giant Beaver to decode ancient secrets. The ...

Ask the publishers to restore access to 500,000+ books. The Internet Archive keeps the record straight by preserving government websites, news publications, historical documents, and more. If you find ...