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Dinosaurs are animals that dominated terrestrial environments for more than 160 million years, first appearing approximately 230 million years ago. They were extremely varied, abundant and have been found preserved on all seven modern continents.
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
[2] He became interested in dinosaurs as a teenager, not a young child like many palaeontologists, so he read adult popular science books, which he described as a "gateway into science". He wanted to write an up-to-date book on "the whole evolutionary story of dinosaurs" that would fill that niche and cover new discoveries, which hadn't been ...
A new analysis of fossil faeces has revealed what the environmental conditions were like at the time dinosaurs started to take over the Earth.. Researchers found undigested remains of food, plants ...
A mass extinction event that brought about the rise of the dinosaurs more than 200 million years ago was believed to be caused by the planet’s warming. Now, scientists at Columbia University say ...
Dinosaurs were initially cold-blooded, but global warming 180 million years ago may have triggered the evolution of warm-blooded species, a new study found. Study reveals when the first warm ...
National Geographic Dinosaurs is a nonfiction reference book on dinosaurs, written by Paul Barrett, with illustrations by Raúl Martín, and an introduction by Kevin Padian. It was published in 2001 by National Geographic .
The falling cost of computer-generated effects also has recently allowed the increased production of documentaries for television; the award-winning 1999 BBC series Walking with Dinosaurs, the 2001 When Dinosaurs Roamed America, the 2003 Dinosaur Planet, the 2009 Animal Armageddon, the 2011 Dinosaur Revolution, the 2011 Planet Dinosaur and the ...