These dinosaurs are not the largest of sauropods, and they grow to be around 50 to 65 feet long (15 to 20 meters). Standing at around 20 feet tall (6 meters), it is estimated they weighed around ...

For years, scientists believed that dinosaurs first emerged in Gondwana—the southern portion of the ancient supercontinent ...

Triceratops was one of the most common dinosaurs at the end of the Cretaceous Period. Its most prominent features are on its head: two long brow horns, a nasal horn, and a bony frill. Its frill had no ...

Until 1842, no one had heard of the word ‘dinosaur’. But when acclaimed anatomist Richard Owen grouped three prehistoric animals with curious features in common, he changed the way the world thought ...

Did dinosaurs lose their dominance suddenly or ... is very rare on Earth's surface but is more common in asteroids and in molten rock deep within the planet. Some scientists think the presence ...

It’s an unlikely relationship, but the humble pigeon is a descendant of the group of dinosaurs that also includes the mighty Tyrannosaurus rex. The two species share a remarkable biological past. Our ...

Last common ancestor of all life emerged far earlier ... the findings nonetheless support earlier work from South America suggesting that dinosaur species were already significantly expanding ...

The date corresponds perfectly to the date of the dinosaur extinction. Rare Metal The metal iridium, which is similar to platinum, is very rare on Earth's surface but is more common in asteroids ...