Man, 30, completes encyclopedia of animals he started at nine

Josh Gabbatiss began survey of all living creatures more than two decades ago with corals, worms and jellyfish

Josh Gabbatiss was nine when he precociously decided he was going to write an encyclopedia of every living creature, beginning with corals, worms and jellyfish.

More than two decades later, aged 30, he has finally completed the project and could not be more proud. His final entry is one of our closest relatives, the chimpanzee.