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20:24 05/01/2017

Some dino eggs took months to hatch, perhaps leading to extinction: study

The eggs of nonavian dinosaurs took three to six months to hatch, a long incubation period that could help explain dinosaurs' mass extinction 65 million years ago, according to new research. Findings published Monday in the Proceedings of the National Academy of Sciences show that nonavian dinosaur incubation mirrored that of reptiles, a prolonged time before hatching that could have impacted dinosaurs' ability to compete with other animal populations that were breeding faster.