Cutting ammonia emissions may be the best way to reduce air pollution
4 November 2021
Emissions of ammonia can lead to tiny particles in the air that damage our health, but many countries have no policies on limiting its release into the atmosphere
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Dogs can pick out individual words when we speak to them
29 October 2021
Infants are able to identify individual words in continuous speech, even if they can't understand them – and now it seems dogs can as well
UK urban areas are home to 250,000 unowned cats
28 October 2021
It’s not easy to estimate the number of lost, abandoned or feral cats on UK streets, but with the help of citizen scientists we now have a figure
Hundreds of ancient ceremonial sites found in southern Mexico
25 October 2021
Researchers have uncovered 478 ceremonial sites that were probably built by the Olmec and the Maya thousands of years ago
Wolf cubs raised by humans become attached to us like puppies
21 October 2021
Wolf cubs raised by humans become attached to people like puppies, suggesting ancient wolves could have become attached to Stone Age humans too
Hares with failed snow camouflage still manage to avoid predators
7 October 2021
Snowshoe hares turn white in autumn to blend into their snowy environment – but surprisingly, they thrive even when the snow doesn’t fall
Climate change drove the expansion of the Tupi people in South America
6 October 2021
The Tupi people, who originated in what is now Brazil, probably spread out from this ancestral location following a regional shift to a humid, forest-friendly climate
Chicken-sized dinosaur found in Wales is UK's earliest known theropod
5 October 2021
Dinosaur fossils found during the 1950s but then lost in London’s Natural History Museum for decades belong to the UK’s earliest known theropod, now named Pendraig milnerae
People in cities have faced huge increase in heat exposure since 1983
4 October 2021
The world’s city dwellers collectively experienced 119 billion days above 30°C in 2016 – an almost 200 per cent increase on the equivalent 1983 figure of 40 billion days
Female cleaner fish can judge when to cheat without getting caught
30 September 2021
Female cleaner fish deceive their male partners when the pair are cleaning a client fish, but only if the male is out of sight, suggesting the females have theory of mind
