Darwin's friend Thomas Henry Huxley. He became one of the most outspoken advocates of Darwin's theory of evolution.

Contrary to what has been stated in countless thousands of publications over the past 100 years, Huxley was not known as "Darwin's bulldog" - this surprising revelation comes from: in John van Wyhe, Why there was no 'Darwin's bulldog': Thomas Henry Huxley's famous nickname. The Linnean, 2019.

See his influential review of Origin of Species from The Times.

Darwin Online contains the world's largest collection of reviews of Darwin's works, here.

See: The Complete Photographs of Darwin