The sauropod dinosaur Nigersaurus likely evolved its strangely-shaped head to better mow prehistoric lawns.
In 1997, when paleontologist Paul Sereno first began to unearth the remains of a dinosaur in Niger's Sahara Desert, he didn’t know what to think. He was excavating bones in a dry region called Gadoufaoua, which had a rich fossil bed first discovered by French uranium miners. There were a lot of light, aerated bones — usually associated with theropods, likeand the birds that evolved from them — so the researchers assumed that was what they were dealing with.
“It’s something that really takes the cake for amazing cranial adaptations in this group, the long-necked dinosaurs,” says Sereno, a professor of paleontology at the University of Chicago. “It’s just a majestic example of evolution.”walked on four legs, with a long “whiplash tail” and a long neck. But compared to other sauropods, it was relatively small — sitting somewhere between an African and Indian elephant in size.
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