How ‘supergenes’ help fish evolve into new species
Why are there so many different kinds of animals and plants on Earth? One of biology’s big questions is how new species arise and how nature’s incredible diversity came to be.Cichlid fish from Lake Malawi in East Africa offer a clue. In this single lake, over 800 different species have evolved from a common ancestor in a fraction of the time it took for humans and chimpanzees to evolve from…

