News tagged with cretaceous period

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Researchers say a comet killed the dinosaurs

In a geological moment about 66 million years ago, something killed off almost all the dinosaurs and some 70 percent of all other species living on Earth. Only those dinosaurs related to birds appear to have survived. Most ...

dateApr 04, 2013 in Earth Sciences
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Mass extinction study provides lessons for modern world

The Cretaceous Period of Earth history ended with a mass extinction that wiped out numerous species, most famously the dinosaurs. A new study now finds that the structure of North American ecosystems made the extinction worse ...

dateOct 29, 2012 in Ecology
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