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Flies cool themselves down by constantly blowing bubbles of spit

Flies cool themselves down by constantly blowing bubbles of spit

19 April 2018

Blowflies repeatedly blow bubbles of saliva, which look like brown bubble gum – and it turns out this odd behaviour helps them keep cool

Desert

Cold climate may have driven ancient humans’ move out of Africa

9 October 2017

East Africa became colder and drier around 75,000 years ago, just when modern humans were apparently migrating out of Africa

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