Thousands of scientists are cutting back on Twitter, seeding angst and uncertainty
A Nature survey reveals scientists’ reasons for leaving the social-media platform now known as X, and what they are doing to build and maintain a sense of community.
A Nature survey reveals scientists’ reasons for leaving the social-media platform now known as X, and what they are doing to build and maintain a sense of community.
The emerging habitats represent huge ecological shifts and present new challenges for conservation.
Feeding and the maintenance of internal body temperature are tightly linked in warm-blooded animals, and mammals eat more in the cold to maintain their body heat. Experiments reveal that a small nucleus in the brain’s thalamus controls feeding behaviour specifically in cold conditions by directly activating a reward centre in the brain.