Hannah Devlin
About Hannah Devlin
Hannah Devlin is the Guardian's science correspondent, having previously been science editor of the Times. She has a PhD in biomedical imaging from the University of Oxford. Hannah also presents the Science Weekly podcast.
Locust study could lead to better control of these fine young cannibals
The discovery of an "anti-cannibalism" pheromone raises the possibility of spraying crops with a similar chemical as a non-toxic insecticide.
If you smell like a flower, the skeeters are going to love you
A study suggests that rather than helping you go incognito, soapy fragrances could make you a more attractive target, with mosquitoes favouring the scent of volunteers who washed with three out of four popular soap brands tested.
When whales want to get real loud, they crank up their ‘phonic lips’
Researchers have solved the puzzle of how whales generate enough airflow 1,000 metres underwater, where pressure is 100 times that at the surface.
Scientists spot new emperor penguin colony in Antarctica using satellite images
The colony of about 500 birds was seen in a remote region where they face an existential threat due to global heating.
Scientists potty-training cows to help clean up our planet
In the latest study, scientists tried a method they called the MooLoo approach to teach calves to use a toilet area in their barn, meaning that urine could be collected and treated.