Gloomy octopus - master of disguise at House reef diving Mantaray Island Fiji

Biodiversity #13: Octopus

Biodiversity#13: Octopus. A cephalopod mollusc of the order Octopoda, literally meaning ‘eight-foot’. Their bodies have no internal or external hard parts and they have been known to squeeze through very small apertures – mainly in order to escape!

 

Cuttlefish at Fairy Bower

Biodiversity #21 – The Cuttlefish

Despite the name, the cuttlefish is not a fish, but a cephalopod (literally: ‘head-foot’) which includes close cousins squid and octopus and distant cousin: the Nautilus. Unique internal shell called a cuttlebone which, being porous it can use to regulate buoyancy. (In-built BCD!)