Pisco-Ica desert along the country's coast yields remains of rare species, with well-preserved skulls.
Prevalence of the dinosaur's skin in fossil record may have more to do with texture, toughness than population density or habitat.
The specimen, approximately 560 million years old, contains fibrous bundles that appear to be muscle tissue, an important evolutionary adaptation.
Half-ton boulder with fossilized remains is hauled up to street level by elbow grease, ingenuity, and a ropes-and-pulleys system.
One of the first predators of its day, the creature sported compound eyes, body armor and two spiky claws for grabbing prey.
Sharks might be able to cope with climate change's effects upon the Arctic, a study of fossil shark teeth has found. Continue reading →
'World-class' track site in Denali National Park shows that herds of duck-billed dinosaurs thrived under the midnight sun.
More than a million years ago, hippopotamuses paddled across a shallow pool in the region that's now northern Kenya, occasionally scraping their feet on the sandy bottom.
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