Gigantic Marine Lizards Had Live Births
Ancient aquatic Reptiles gave birth to live young
It was thought that, similar to some other lizards, they came ashore to lay eggs. But fossils found over 100 years ago were recently re-examined by Aaron LeBlanc, a PhD candidate in the Department of Ecology and Evolutionary Biology at the University of Toronto, Mississauga.
He found they were new-born mosasaurs, and not a toothed bird as previously thought. Because these fossils were found in what was once an ocean, it is believed that mosasaurs gave birth to live young - similar to whales - and did not lay eggs at all.