The Australian giant cuttlefish is the largest of the world’s hundred or so species of cuttlefish. It can grow to lengths of about a metre and weigh over 10kg (22 pounds). Like all cephalopods, it is carnivorous.
Scientific name: Sepia apama
Australian giant cuttlefish
Undersized male cuttlefish have a sly way to get to the girls.
It seems humans aren't the only ones to use dirty tricks when it comes to getting a mate. It goes without saying that there is more to a cross-dresser than meets the eye, but some male cuttlefish have developed it to a fine art. Too small to fight for a mate, this male changes his appearance to trick a courting pair of cuttlefish into believing he's just another female looking to mate. The strategy works: the other male is fooled and the cross-dresser nips in quick while he's distracted!
The favourite prey of giant cuttlefish is sparse so they live and hunt alone except during the breeding season.
Cuttlefish first mesmerise their victim then take aim and fire. They are deadly accurate. The rocky reefs of the Great Australian bight are vital in the breeding season where giant cuttlefish gather in their thousands.
The Giant cuttlefish can be found in a number of locations including: Australia. Find out more about these places and what else lives there.
The following habitats are found across the Giant cuttlefish 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
Sepia apama, also known as the Australian giant cuttlefish, is the world's largest cuttlefish species, growing to 50 cm in mantle length and over 10.5 kg (23 lb) in weight. Using cells known as chromatophores, the cuttlefish can put on spectacular displays, changing colour in an instant.
S. apama is native to the southern coast of Australia, from Brisbane in Queensland to Shark Bay in Western Australia. It occurs on rocky reefs, seagrass beds, and sand and mud seafloor to a depth of 100 m.
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