Latest about Life's Little Mysteries
How do DNA tests tell if two people are related?
How can DNA from a cheek swab determine if someone is closely related to you?
Are cats and dogs smarter than babies?
It's possible to compare some aspects of animal and human intelligence, but not all researchers like to.
Could we ever retrieve memories from a dead person's brain?
Neuroscientists have identified the physical locations where memories are stored in the brain. But would that enable us to retrieve memories from someone who has died?
Do blind people 'see' images in their dreams?
For people who have been blind since birth, brain scans alone can't reveal if they dream in images.
How does E. coli get into food?
Dangerous strains of E. coli bacteria can infiltrate the food supply through many different routes, experts explain.
Do black holes really evaporate — and how do we know?
In 1974, Stephen Hawking proposed that black holes could evaporate. But do we understand how this might happen?
What if the Persians had defeated Alexander the Great?
The world we live in might be unrecognizable if Alexander the Great had been defeated by the Persians.
