Colour variation speeds up evolution
Decades of data gathered by bird watchers and geneticists have helped confirm a 60-year-old theory of evolution.
Dinosaur farts could have contributed to global warming
Gaseous emissions from giant herbivores may have been enough to warm the Earth.
Bigger isn’t always better — or faster
Lizard study reveals why cheetahs are the world’s fastest animal.
Understanding Frida Kahlo’s fertility problems
The famous Mexican painter studied medicine in her youth and used that knowledge to paint the different factors that might have affected her ability to procreate.
Glowing can be an effective camouflage
Small-eye pigmy sharks’ bellies shine to disguise them from predators.
Brain scans predict weight and sexual behaviour
Functional MRI scans can reliably judge a person’s most basic appetites.
Picky females promote diversity
Women are genetically designed to be picky — particularly with their men.
Beating the height hangover
The over-the-counter solution that might help put an end to altitude sickness.
