We have selected UCMP Berkeley as the world's very best website on Dinosaurs.
The UCMP Berkeley is the University of California Museum of Paleontology, part of the Berkeley Natural History Museums, which is itself part of the University of California at Berkeley. The mission of the UCMP Berkeley is to carry out research and education which promotes the understanding of the history of life and the diversity of the Earth's biota.
The UCMP Berkeley website has a substantial section on dinosaurs. It is organized into the following main sections: Dinosaur Fossil Record, Life History & Ecology of Dinosaurs, Systematics, and Dinosaur Morphology.
Other sections answer popular questions about dinosaurs, including: Are birds really dinosaurs?, What killed the dinosaurs?, Were dinosaurs hot-blooded or cold-blooded?, Can we infer the possible speeds of dinosaurs?, and Is what the movies tell us about dinosaurs true?
There is an online exhibition about Tyrannosaurus Rex, and an Audio Tour about the discovery and reconstruction of Dilophosaurus from the discoverer of that dinosaur, the late Sam Welles.