People with blue eyes appear to be able to read at a lower lux level than those with brown eyes caia image / Alamy
People with blue eyes can read better in darker conditions than those with brown eyes, a small study has found. This suggests having blue eyes is an advantage in low-light conditions, and might help explain why the trait evolved in northern Europe. But the finding needs to be confirmed in a larger study.
“It’s preliminary,” says at Liverpool John Moores University in the UK, who studies the genetic basis of skin, hair and…
