English biologist who was termed "Darwin's Bulldog" for his defense of
Charles Darwin's theory of
evolution. Interestingly, Huxley did not accept many of Darwin's ideas (e.g. gradualism), and was more interested in advocating a
materialist professional science than in defending
natural selection. A talented popularizer of
science, he coined the term
Agnosticism. Huxley was also the grandfather of
Aldous Huxley.