Scientists Have Uncovered Embryos Older Than Most Dinosaur Fossils, Did They Give Birth to Live Young?

Scientists Have Uncovered Embryos Older Than Most Dinosaur Fossils, Did They Give Birth to Live Young?

An international team of paleontologists has uncovered the oldest known fossil reptile embryos, dating back approximately 280 million years. This discovery, featuring well-preserved embryos of mesosaur, an ancient aquatic reptile, was made in both Brazil and Uruguay. The embryos suggest that mesosaurs may have been viviparous, giving birth to live young, potentially pushing back the origins of viviparity by 60 million years. The study, published…