Life
Giant ground sloths evolved three different times for the same reason
An analysis of the sloth family tree suggests three different groups of the animals evolved to gigantic sizes in response to cold and dry conditions
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Life
The first teeth were sensory organs on the skin of ancient fish
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Life
Welcome to a great, straightforward guide to the tree of life
Culture
Humans
Humans evolved to survive mild burns at the expense of severe ones
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Life
Oldest ant fossil ever found shows how ants took over the world
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Life
What the surprising lives of solitary animals reveal about us
Features
Life
Cannibal spiders have strange trick to stop their siblings eating them
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Life
The anus may have evolved from a hole originally used to release sperm
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Life
Ancient wasp may have used its rear end to trap flies
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Life
Bizarre fossil may have been an entirely new type of life
Chemical analysis suggests the 400-million-year-old fossil Prototaxites was neither plant, animal or fungus 鈥� hinting at a mysterious life form that went extinct long ago
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Life
Fossils reveal what the fur of early mammals looked like
News
Humans
The epic scientific quest to reveal what makes folktales so compelling
Features
Life
Sex may have evolved as a way to pool resources during tough times
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Life
Stone tools help monkeys thrive in hostile habitats
News