BBC History: Thomas Henry Huxley (1825 - 1895): Concise biography of this early evolutionist.
Biography.com: Huxley, Thomas Henry: Brief biographical entry.
Ehux: Thomas Henry Huxley: Portrait and short review of this zoologist's legacy.
The Athenaeum: Thomas Henry Huxley: Brief profile and synopsis of his scientific thought.
Thomas Henry Huxley: Brief article from the Internet Encyclopedia of Philosophy on Huxley and his thought.
Thomas Henry Huxley: Short introduction by Daniel G. Blackburn to the man who became known as "Darwin's Bulldog."
Thomas Huxley: Biographical profile includes portrait and excerpt from his writings.