Dinosaurs fell victim to perfect storm of events, study shows

28 julio 2014

Dinosaurs might have survived the asteroid strike that wiped them out if it had taken place slightly earlier or later in history, scientists say. They found that in the few million years before a 10km-wide asteroid struck what is now Mexico, Earth was experiencing environmental upheaval. This included extensive volcanic activity, changing sea levels and varying temperatures. At this time, the dinosaurs’ food chain was weakened by a lack of diversity among the large plant-eating dinosaurs on which others preyed.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/RB3EjtqyBhg/140728080548.htm

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