Dinosaur eggs took a surprisingly long time to hatch, Study

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Dinosaur eggs took a surprisingly long time to hatch, Study
Dinosaur eggs took a surprisingly long time to hatch, Study

Dinosaur eggs took a surprisingly long time to hatch, according to a study published today in the Proceedings of the National Academies of Sciences.

Researchers have long assumed dinosaur incubation was similar to the rapid incubation of birds, which hatch within 11 to 85 days. However, the study found that dinosaurs aligned more with the prolonged incubation of reptiles.

Growth lines in the teeth of dinosaur embryos showed “slow reptilian-grade development” spanning months, scientists wrote in a study. The research results suggest that dinosaurs’ slow development may have affected their ability to compete with the more quickly generating populations of birds, reptiles and mammals after the mass extinction 65 million years ago.

“We know very little about dinosaur embryology, yet it relates to so many aspects of development, life history, and evolution,” study co-author Mark Norell said in a press release. “But with the help of advanced tools like CT scanners and high-resolution microscopy, we’re making discoveries that we couldn’t have imagined 20 years ago. This work is a great example of how new technology and new ideas can be brought to old problems.”

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