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dinosaur
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dinosaurs to scale dinosaur phylogeny
Find out whether dinosaurs really had feathers
Track the discovery of dinosaurs from 7th-century griffin legends to Richard Owen's coining of Dinosauria
Dinosaur National Monument fossil
Learn about the discovery of dinosaur “Sue” and the competition between collectors
Plateosaurus Iguanodon Compsognathus
For Students
dinosaur summary
Quizzes
Model of a molecule. Atom, Biology, Molecular Structure, Science, Science and Technology. Homepage 2010 arts and entertainment, history and society
Science Quiz
vulture. An adult bearded vulture at a raptor recovery center. The Gypaetus barbatus also known as the Lammergeier or Lammergeyer, is a bird of prey and considered an Old World vulture.
Animal Factoids
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
27 True-or-False Questions from Britannica’s Most Difficult Science Quizzes
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names
Lion (panthera leo)
Deadliest Animals Quiz
Related Questions
Read Next
Illustration of a group of Brachiosaurus dinosaurs in the water. Sauropod late Jurassic to early Cretaceous
Did Humans Live at the Same Time as Dinosaurs?
Three parasaurolophus stand on a rock beach. Pterasaurs fly over head and a small mammal watches the dinosaurs as they meander along the water's edge.
What Happened to the Dinosaurs?
Tyrannosaurus Rex attacking two Struthiomimus dinosaurs.
Did Dinosaurs Really Have Feathers?
Therizinosaurus, theropod, dinosaur
6 Awesome Dinosaur Species You Should Know
illustration of the walking titanosaurus, Patagotitan mayorum
Titanosaurs: 8 of the World's Biggest Dinosaurs
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Several red apples with cut apple in the foreground.
Can Apple Seeds Kill You?
King Cobra snake in Malaysia. (reptile)
9 of the World’s Deadliest Snakes
Close-up of tobacco plants in Ontario, Canada. Tobacco, Nicotiana, cured leaves used after processing in various ways for smoking, snuffing, chewing, and extracting of nicotine.
7 of the World’s Deadliest Plants
Obscure Freaky Smiling Psycho Man, phsychopath, sociopath, evil, mean
What’s the Difference Between a Psychopath and a Sociopath? And How Do Both Differ from Narcissists?
The Titanic. (disasters, ships)
Timeline of the Titanic’s Final Hours
Shadow of a man holding large knife in his hand inside of some dark, spooky buiding
7 of History's Most Notorious Serial Killers 
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline

The discovery of an abnormally high concentration of the rare metal iridium at, or very close to, the K–T boundary provides what has been recognized as one of those rare instantaneous geologic time markers that seem to be worldwide. This iridium anomaly, or spike, was first found by Walter Alvarez in the Cretaceous–Tertiary stratigraphic sequence at Gubbio, Italy, in the 1970s. The spike has subsequently been detected at hundreds of localities in Denmark and elsewhere, both in rock outcrops on land and in core samples drilled from ocean floors. Iridium normally is a rare substance in rocks of Earth’s crust ...(100 of 18558 words)

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