Shape-shifting cuttlefish
The anatomy of one of the most intelligent animals in the ocean
Cuttlefish belong in a scientific group called ‘cephalopods’ and are related to octopuses and squid. There are about 120 types worldwide, and of those, three can be found in the UK: the common, elegant and pink cuttlefish. Like their relatives, cuttlefish are one of the most intelligent invertebrates.