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Humans

Human and Neanderthal interbreeding questioned

The genes that many humans share in common with Neanderthals do not reflect interspecies breeding, a controversial study suggests

Earth

Changeable climate makes frogs vulnerable to disease

Environment

Zoologger: The longest tunnels dug by a mammal

Life

Sandpipers achieve world record for sleeplessness

Health

Stem cells responsible for higher brain function found

Humans

Fossils confirm three early humans roamed Africa

Environment

Chimeric birds could explain how brains get big

Life

Zoologger: Colour tricks help put a cuckoo in the nest

Humans

Modern culture began in South Africa 44,000 years ago

Man sitting on pavement holding a cardboard sign with downcast head

Humans

Inequality: Why egalitarian societies died out

Sharing and cooperation was the rule for millennia 鈥� but the very instability of unequal societies caused them to spread

Humans

The true faces of emotion

Humans

Was America first colonised by two cultures at once?

Humans

Hominins did not need boats to settle islands

Humans

The yuck factor: The surprising power of disgust