More from Ewen Callaway
Explore the latest news, articles and features
Humans
Is your cat left or right pawed?
News
Health
‘Oprah neuron’ hints at nature of memory
News
Humans
Apes may imitate but they struggle to innovate
News
Humans
Stone-age innovation explains ancient population boom
News
Health
Girl with half a brain retains full vision
News
Humans
Why Neanderthals were always an endangered species
News
Life
Jockey technique boosts steed speed
News
Health
Artistic tendencies linked to ‘schizophrenia gene’
News
Life
Jefferson would not have supported intelligent design
News
Life
World’s oldest tattoos were made of soot
News
Health
Hacking body with light could speed jet lag recovery
News
Health
New clues in search for elixir of youth
News