Tools for the job
Another aspect of octopus intelligence is the use of tools. Previously only witnessed in primates, dolphins and some birds, octopuses in Indonesian waters have been witnessed carrying two halves of a coconut shell as they traverse the seafloor. The octopuses used these halves as a whole protective ‘case’, squeezing into the coconut in areas where dens, nooks and crannies were hard to find in order to escape predators. Tool use has long been a benchmark of animal intelligence, but there is some debate among biologists as to whether this is classed as ‘tool usage’.
A portable coconut home is a safe and secure place in which to hide