Some people have neurological quirks that give them extraordinary perceptual powers. What can we learn from them?
Not just a pretty boy
Intelligent, devoted, alien – parrots are unlike any other pet. But what does the complex human-avian bond say about us?
The empathy machine
Sherlock was right – new research shows that seeing through another's eyes takes a detached mind not just a warm heart
The kindness of beasts
Dogs rescue their friends and elephants care for injured kin – humans have no monopoly on moral behaviour