Video: Asteroid's timing was 'colossal bad luck' for the dinosaurs

A new study in the journal Biological Reviews says the meteor that likely wiped out the dinosaurs struck at the perfect time. Well, not so perfect for the dinosaurs. 

Dr. Steve Brusatte of Edinburgh University, who led the study, told Discovery the asteroid struck while Earth was undergoing climate changes caused by volcanic eruptions, tectonic events such as mountain formation and changing sea levels. This led to a weakened food chain as plant-eating dinosaurs died out.

For more, watch this Newsy video. 

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