Coelacanths are living fossils. The whole group was thought to be extinct until a specimen was caught in 1938. There are two living species: the coelacanth and the Sulawesi coelacanth. They inhabit deep water, so are rarely seen and difficult to film.
Scientific name: Latimeria
A coelacanth links land dwellers with their ocean heritage.
David Attenborough goes to the Madagascar Research Institute's laboratory to see its most famous fish - the coelacanth. Until 1938 it was believed to be extinct. The coelacanth, or a fish very like it, would have been the ancestor of all amphibians, reptiles, birds and mammals. This clip was first broadcast in 1961.
The following habitats are found across the Coelacanths distribution range. Find out more about these environments, what it takes to live there and what else inhabits them.
Discover what these behaviours are and how different plants and animals use them.
Additional data source: Animal Diversity Web
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