The fruit of Synsepalum dulcificum, a plant native to West Africa, doesn’t taste sugary on its own, but any sour food you eat afterwards will turn miraculously sweet
Studies show it is always best to bake your sweet potatoes, rather than boil or microwave them, and there is another trick to take the tubers to the next level of deliciousness, says Sam Wong
We are finally figuring out the subtle ways that farm and zoo animals reveal their emotional states, from anxiety to optimism and even joy. The insights are also revealing some surprising ways we can improve their lives
Orcas hunting a seal, duelling Nubian ibexes and a stunning horseshoe crab appear in winning images from this year’s Wildlife Photographer of the Year competition
A glacier under covers, a fish in danger of losing its home and threatened African penguins feature in the best entries to the Royal Society of Biology Photography Competition