At first glance, it might not seem like people have much in common with deer. But a strange discovery about how their antlers regenerate is lifting the lid on the unseen ways that our bodies work, too.     Biologist Chunyi Li, who has long studied deer in north-east China, noticed something odd that happened when the animals regrew their antlers each…

Administering cancer treatments at a particular time could be a relatively simple but effective intervention Kenneth K. Lam/ZUMA Press/Alamy Delivering cancer immunotherapy earlier in the day really could extend survival, according to the first randomised-controlled trial into how the timing of such interventions affects patient outcomes. Our body’s cells and tissues follow 24-hour cycles of…

There might be a big clump of dark matter in our galactic neighbourhood Alamy There seems to be an enormous cloud of dark matter next to our solar system. We have never found one of these clouds in the Milky Way before, but precise cosmic clocks called pulsars finally made it possible. Our best cosmological…