Julian Sorell Huxley was born in London, United Kingdom on June 22, 1887, to Leonard Huxley, who was a biographer, and Julia Arnold Huxley, who founded the Prior’s Field School for Girls. Huxley was the oldest of five children. As a child, Huxley displayed a strong Interest in the natural world, spending many hours fading and watching birds in rural England. It was perhaps his grandfather, Thomas H. Huxley, who had the greatest influence on the boy’s future choice of a career. T.H. Huxley was a well-known biologist and an early defender of Charles Darwin’s theory of evolution.