BBC History: Thomas Henry Huxley (1825 - 1895)
- Concise biography of this early evolutionist.
- http://www.bbc.co.uk/history/historic_figures/huxley_thomas_henry.shtml

Thomas Henry Huxley
- Short introduction by Daniel G. Blackburn to the man who became known as "Darwin's Bulldog."
- http://shakti.trincoll.edu/~blackbur/huxley.html

Ehux: Thomas Henry Huxley
- Portrait and short review of this zoologist's legacy.
- http://www.soes.soton.ac.uk/staff/tt/eh/huxley.html

Biography.com: Huxley, Thomas Henry
- Brief biographical entry.
- http://search.biography.com/print_record.pl?id=5627

The Athenaeum: Thomas Henry Huxley
- Brief profile and synopsis of his scientific thought.
- http://www.lexicorps.com/Huxley.htm

Thomas Huxley
- Biographical profile includes portrait and excerpt from his writings.
- http://www.ucmp.berkeley.edu/history/thuxley.html