14 November, 2021
An extraordinary fossil site in the South American region of Patagonia has provided the earliest evidence of dinosaurs living in herds.
The find includes more than 100 eggs and scores of skeletons, ranging from embryos that could fit in the palm of your hand to full-grown adults larger than cars.
All are the same species, Mussaurus patagonicus, a herbivore that lived about 193 million years ago on the fringes of an ancient lake.
The find predates what had previously been the earliest evidence of dinosaurs living in herds by at least 40 million years.