The greatest mysteries have a shadowy figure at the center, Patient Zero. We hunt for Patient Zeroes from all over the map.
The domestic cat is descended from a solitary, elusive, ferocious predator. So, how did we turn the wild-cat into that furry lump, purring in your lap? By studying the cat genome, scientists have discovered part of the answer, but they've also found that your cuddly house-cat is still pretty wild.