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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.

Health

Blasting sluggish sperm with ultrasound waves gets them moving

Sperm that were immobile became active after just 20 seconds of ultrasound exposure in a lab experiment that may help boost the success of fertility treatment

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Pitcairn Islands

Environment

What a trip to far-flung islands taught me about protecting our oceans

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C1R8W3 Maipure Indians, inhabitants of the Upper Orinoco river, grilling the legs of a dead enemy. Italian Engraving 1781. Colored.

Humans

Is it time for a more subtle view on the ultimate taboo: cannibalism?

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Mind

There aren’t five love languages, despite claims on TikTok

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Forest fires in Amazon

Environment

Half of the Amazon may be pushed to climate tipping point by 2050

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Life

Rice containing beef cells could make a sustainable meal

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Illustration of altermagnetism in a chemical compound

Physics

The existence of a new kind of magnetism has been confirmed

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Earth

Bacteria could help turn CO2 to rock under extreme conditions

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Life

Female scorpions get stung during sex – and they seem to welcome it

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Male Andrea cuttlefish (Sepia andreana)

Life

Male cuttlefish burst through their ink clouds to impress females

Cuttlefish usually use ink to confuse predators – but one species uses it as a dramatic backdrop, bursting through an inky cloud during courtship displays like a stage performer making a spectacular entrance

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Life

Great apes like teasing each other – which may be the origin of humour

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Space

Satellite beamed power from space to Earth for the first time ever

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Life

Small dogs are more likely to have an extra row of teeth like sharks

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Life

Brazilian flea toad may be the world’s smallest vertebrate

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