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ISC DIVER
Top 50 Dive Sites

Mimic Octopus

Thaumoctopus mimicus

Rank
Species
Dive sites
1 site

The mimic octopus is a master of deception, changing colour, pattern, and body shape to impersonate other species—notably venomous sea snakes, lionfish, and flatfish. Found in Indo-Pacific coastal waters, typically at depths between 5 and 40 metres, it hunts small fish and crustaceans across sandy and muddy substrates. Its ability to rapidly shift appearance and mimic the behaviour of dangerous neighbours is a remarkable strategy for evading predators without the cost of producing venom itself.

Most likely to be seen at

Sites where its range and habitat make it likely — not yet confirmed by a logged sighting.