The octopus is a unique animal. It is intelligent, and has a sharp vision and a devastating array of offensive organs for attacking the prey. It is a fast swimmer, too. These qualities make the octopus a supreme predator.
Octopuses vary a great deal in size; the smallest is about 5 cm long, while the largest species may grow to 5.4 metres in length and have an arm span of almost 9 metres! They inhabit various regions of the ocean, including coral reefs, open sea waters, and the seabed.
The body of an octopus is designed for hunting. Its skin cells have the ability to change colour with the help of which it camouflages near rocks and the coral reefs. Its tentacles have muscular discs that help it catch prey. The octopus usually ambushes its prey; when a suitable prey comes, it shoots out one of its eight long tentacles and traps it. It usually feeds on crabs, shrimps and lobsters though it can attack larger prey like sharks as well.
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