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While the dinosaurs' modern-day surviving avian lineage (birds) are generally small due to the constraints of flight, many prehistoric dinosaurs (non-avian and avian) were large-bodied—the largest sauropod dinosaurs are estimated to have reached lengths of 39.7 meters (130 feet) and heights of 18 m (59 ft) and were the largest land animals of ...
Assessing a dinosaur's intelligence, considering the innumerable factors contributing to that trait, is exponentially more difficult. ... It is unknown how densely packed the neurons were in ...
In 1977 James Hopson introduced the use of estimated encephalization quotients to the topic of dinosaur intelligence, finding Edmontosaurus to have an EQ of 1.5, above that of other ornithischians including earlier relatives like Camptosaurus and Iguanodon and similar to that of carnosaurian theropods and modern crocodilians but below that of ...
Major extinctions in terrestrial vertebrates and large amphibians. Earliest examples of armoured dinosaurs. 195 Ma First pterosaurs with specialized feeding (Dorygnathus). First sauropod dinosaurs. Diversification in small, ornithischian dinosaurs: heterodontosaurids, fabrosaurids, and scelidosaurids. 190 Ma Pliosauroids appear in the fossil ...
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It has been suggested that g is related to evolutionary life histories and the evolution of intelligence [130] as well as to social learning and cultural intelligence. [ 131 ] [ 132 ] Non-human models of g have been used in genetic [ 133 ] and neurological [ 134 ] research on intelligence to help understand the mechanisms behind variation in g .
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.
The idea that dinosaurs were similar to birds was first proposed by Thomas Henry Huxley in the 1860s, but was dismissed by Gerhard Heilmann in his influential book The Origin of Birds (1926). [ 7 ] [ 8 ] [ 9 ] Prior to Ostrom's work, the development of birds was generally believed to have split off early on from that of dinosaurs.