Earth
Complex life may have had a false start 2.3 billion years ago
High levels of oceanic oxygen could聽have allowed advanced, animal-like life to develop for the first time 鈥� only to be wiped out again as oxygen vanished
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Harvester ants farm by planting seeds to eat once they germinate
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Fish lure snails to their nest to help camouflage their babies
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Mice turn into killers when brain circuit is triggered by laser
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Bird-loving vampire bats develop taste for human blood
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This is why you can’t help babbling to your dog like it’s a baby
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Wild monkey filmed mounting deer and trying to have sex with it
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Why mums and babies prefer to keep to one side of each other
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Oxytocin surge before a fight helps chimps bond with their group
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There are five times more urban foxes in England than we thought
There may now be some 150,000 foxes living in English cities, up from 33,000 in the 1990s. That鈥檚 one fox for every 300 urban residents
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Cannibalistic deep-sea crabs groom each other like chimpanzees
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Reindeer riddle: How do you tell caribou apart?
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Earth
Animal magnetism: Why dogs do their business pointing north
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Humans are better endurance runners than any other animal
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