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Showing posts from December 13, 2015

Spaniel-Size Triceratops Cousin Walked on Its Two Hind Legs

The discovery of a spaniel-size ceratopsian that walked on its two hind legs reveals that Late Jurassic horned dinosaurs were much more diverse than previously thought, a new study finds. Researchers uncovered the remains of the 160-million-year-old, plant-eating creature in China's Gobi desert. The new specimen has a unique ornamental texture on its skull, and it's much smaller than its famous distant cousin, Triceratops, which lived about 95 million years later in North America during the Late Cretaceous, the researchers said.


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What Is a Human? Long-Standing Debate Surrounds Our Family Tree

Several ancient human species and relatives have been unearthed in bits and pieces over the years, including one with an orange-size brain, another dubbed the "hobbit" for its miniature size and a flat-faced hominin with a huge brow ridge. Although these finds have opened more windows into the evolutionary landscape in which today's humans arose, some researchers are not convinced such discoveries belong alongside Homo sapiens. The controversy — whether the human family tree had few or many branches — is part of a long-standing debate between the so-called lumpers and splitters.


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