People who gave up smoking cannabis had a memory boost within a week
30 October 2018
Smoking cannabis can impair memory, but a new study has found that giving up can partially reverse the effect after several days
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Premium
A freak 1870s climate event caused drought across three continents
30 October 2018
Few people have heard of it, but the global famine of 1876-78 probably killed 50 million, and it was triggered by a natural climate event that could easily recur
Orangutans are exceptionally good at keeping their infants alive
30 October 2018
Over 90 per cent of orangutans survive childhood long enough to have their first baby, a feat human societies only achieved in the 1900s
Earth may have a pair of 'ghost moons' made of dust trapped in orbit
29 October 2018
Photographs show signs of a ghost moon, a translucent gas cloud that orbits Earth along with our moon. But some say the images are not definitive
Brazil’s new president will make it harder to limit climate change
29 October 2018
Jair Bolsonaro, Brazil’s new president, looks set to further weaken protections for the Amazon rainforest, a move that threatens efforts to limit climate change
Crickets rapidly evolve new mating call to evade their parasites
29 October 2018
In Hawaii, parasitic flies target singing crickets, forcing them to rapidly evolve to escape detection. Now some males have developed a special, seductive purr
There is a weird new state of matter that can't be stirred or pushed
29 October 2018
Rigid light is a strange new state of matter. It’s somewhere between a solid and a superfluid, and can’t be stirred, rotated, or even pushed
Creams remove skin sun spots with minimal pain and may prevent cancer
28 October 2018
Sun spots – or actinic keratoses – are caused by UV light. Now people are using medicated creams to remove them before they have a chance to turn cancerous
Huddling for warmth gives animals a more efficient gut microbiome
28 October 2018
When animals huddle together in the cold their gut bacteria change in a way that slows down the animals’ metabolisms and helps them preserve energy
Search engine for CCTV lets you find people from their description
28 October 2018
Trawling through surveillance video for a suspect or missing person is slow work, but a new system can automatically match footage of people to their descriptions
