Career
Coleman started scuba diving in 1963, exploring Sydney Harbour. Later he joined a scientific study group and, in 1969, commenced a project aiming to document the entire marine life of Australia, using underwater photography. His first book, Australian marine fishes in colour, was published in 1974 and he subsequently authored more than 50 books
Coleman discovered many marine creatures new to science.
Several species of fish, nudibranchs and other invertebrates have been named after him, including the mantis shrimp Lysiosquilla colemani, the nudibranch Chromodoris colemani, and the pygmy seahorse Hippocampus colemani. Coleman died of natural causes at 4:55am on 4 May 2012, in his sleep.