George John Romanes FRS (20 May 1848 – 23 May 1894) was a Canadian-born English evolutionary biologist and physiologist who laid the foundation of what he called comparative psychology, postulating a similarity of cognitive processes and mechanisms between humans and other animals.
He was the youngest of Charles Darwin's academic friends, and his views on evolution are historically important. He invented the term neo-Darwinism, which is still often used today to indicate an updated form of Darwinism. Romanes' early death was a loss to the cause of evolutionary biology in Britain. Within six years Mendel's work was rediscovered, and a whole new agenda opened up for debate.