Evolution

Unearthed in northeastern China, the nearly complete 130-million-year-old fossil is of a juvenile Psittacosaurus

Incident sparks fears about growing threats to freedom of expression

The discovery has the potential to alter our understanding of human evolution

The research used X-rays and CT scans of the inside of the Chilebus' skull to determine its internal structure

Creatures including elephants, giraffes and hippos may soon become extinct, say researchers

Skeleton of Cro-Magnon 1, a male Homo sapiens dating back 28,000 years, was discovered in 1868 in France

The study was published in the journal Royal Society Open Science

Discovery sheds new light on routes our ancestors took out of Africa, and helps experts understand human evolution

Research suggests fleeing at top speed is a fatal mistake, making it easier for the fearsome felines to kill

Global algae bloom changed everything

Well-known ornithischians include Triceratops, three-tonne Stegosaurus

Turkey senior official claims evolution controversial and difficult to understand

Saccorhytus appears to be the most primitive member of the broad animal group called deuterostomes

A high resolution X-ray CT study of Lucy, indicates she suffered fractures to her right humerus

Fossils of Homo floresiensis -- dubbed "the hobbits" -- were discovered on the island of Flores in 2003