This week: genomes from the Bronze Age, chimps get a taste for cooked food, the US military’s biology arm, tackling homophobia with science, and the genetic mutation that protects against a deadly disease.

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This week: the latest in CRISPR gene editing, the bizarre behaviour of Pluto’s moons, Italian scientists being investigated by the police, and the mystery of Greenland’s disappearing lakes.

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At the moment of birth, babies go through the most disruptive physiological transition they will ever experience: they rid their lungs of fluid and start to breathe. Then the umbilical cord is clamped, shutting off air and blood supply from the mother and cementing their independence. New insights into this process, detailed in a review article by Stuart Hooper and colleagues, could help ease the transition for babies who have problems beginning to breathe on their own.

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This week: redefining the Kelvin scale, laser weapons become a reality, the ethics of killer robots, and scientists find bubbles of air that are one million years old – the oldest air ever studied.

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This week: making opiates from yeast, why sex is worth doing, how zebrafish make their own sunscreen, and the oldest stone tools ever discovered.

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This week: the latest result from the Large Hadron Collider, brainy birds pass a spot-the-difference test that monkeys fail, a look at India’s scientific landscape, and what the UK election might mean for science.

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This week: computers that mimic the human brain, the origins of complex cells, how to clone a mammoth – and should older researchers retire to make room for young blood?

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This week: a tiny dinosaur with bat-like wings, the low-down on the best new science books this spring, we discuss the gene editing of a human embryo, and the controversy surrounding the RIKEN lab.

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This week: bees addicted to pesticides, a new treatment for Ebola, why octopuses have no rhythm, bacterial bonanza found in Amazon tribe - and why is Oklahoma experiencing hundreds of artificial earthquakes?

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This week: how ‘love hormone’ oxytocin affects the brain, a look at what causes our knuckles to crack, one family’s very personal connection to the Hubble Space Telescope - and the mystery of the bright spots on Ceres deepens.

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