Global warming triggered the evolution of giant dinosaurs

The word "dinosaur" tends to evoke giant animals with massive bodies, long necks and tails, and tiny heads. These "quintessential dinosaurs" actually represent one prominent subgroup of the Dinosauria, the so called Sauropoda ...

Study of giant viruses shakes up tree of life

A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding ...

Early humans caused extinction of Australia's giant animals

(PhysOrg.com) -- The mass extinction of Australia's giant animals, such as huge kangaroos and rhinoceros-sized wombats, might have been more rapid than previously thought, according to new research from the University of ...

Well-preserved homo erectus skull discovered in Eastern China

Scientists have discovered a "well-preserved" Homo erectus skull, teeth and other skull bones at the Hualongdong archaeological site in Zhongzhi County of Anhui Province, eastern China, as announced in a news conference on ...

More than meows: How bacteria help cats communicate

Many mammals, from domestic cats and dogs to giant pandas, use scent to communicate with each other. A new study from the University of California, Davis shows how domestic cats send signals to each other using odors derived ...

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