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View Full Version : Dinosaurs were declining before asteroid struck, say scientists



Andrew49
01-05-2012, 08:39 PM
By the time that giant meteor collided with our planet at the end of the Cretaceous, some dinosaur species were already heading toward extinction, new research indicates

http://www.youtube.com/watch?v=mx-cD2NQ-64

Apparently large herbivores such as Triceratops and the duck-billed dinosaurs saw a long-term decline before the catastrophe, but carnivores and other plant-eaters, such as giant sauropods, did not, researchers said. Why some dinosaurs were on their way out while others still thrived just before "the end" may have to do with their locations whether they lived in North America or Asia, for instance.

Source (http://www.csmonitor.com/Science/2012/0501/Dinosaurs-were-declining-before-asteroid-struck-say-scientists-video)