J. T. (Joseph Thomas) Cunningham

Born in London on April 4, 1859, Joseph Thomas Cunningham was a British marine biologist and zoologist who studied at Balliol College, Oxford and later worked at the London Hospital Medical College. He became especially known for research on flatfish and other marine life, and he was elected a Fellow of the Zoological Society of London in 1903.

Cunningham also built a reputation as a prolific scientific writer. Alongside studies of fishes and marine biology, he published books including The Natural History of the Marketable Marine Fishes of the British Islands, Sexual Dimorphism in the Animal Kingdom, and Hormones and Heredity. His writing often tried to connect close observation of animals with larger questions about evolution.

He is remembered in part as a leading English supporter of neo-Lamarckian ideas, arguing that acquired characteristics might be inherited and later suggesting hormones as a possible mechanism. Whether or not later biology agreed with him, his career shows an energetic and independent-minded scientist deeply engaged with the big scientific controversies of his time. He died in London on June 5, 1935.