pääjalkaiset
Pääjalkaiset is the Finnish word for cephalopods, a class of marine molluscs. This group includes intelligent and highly adapted animals such as octopuses, squids, cuttlefish, and the nautilus. Their name, derived from Greek words meaning "head-foot," refers to their most distinctive characteristic: their tentacles or arms are attached directly to their heads.
Cephalopods are known for their advanced nervous systems, complex eyes, and remarkable ability to camouflage themselves.
These marine invertebrates inhabit oceans worldwide, from shallow coastal waters to the deep sea. They are
The intelligence of cephalopods is a subject of ongoing scientific research. Octopuses, in particular, have demonstrated