Weird and Wonderful Octopuses

Southern Keeled Octopus
Getting salty

This nocturnal ninja measures the size of a ruler and is known for curling its arms to mimic seaweed. It also likes living in super-salty environments that others can’t handle. That means less competition when you’re looking for places to live and plenty more food to go around. It’s a great strategy, especially if you don’t like sharing. It’s nickname is a nautical nod to the raised skin or ‘keel’ around the edge of its body.

Southern Argonaut
An octopus in disguise

Although they may not look like it, argonauts are a species of octopus. Females make beautiful paper-thin shells using two special arms. It’s not your traditional shell, it’s better. It’s one part house, one part nursery and one part hot-air balloon. It’s a clever piece of underwater architecture that keeps her afloat, saves her energy and protects her and her babies. These shells can sometimes be found washed up on the beach.

Maori Octopus
Heavyweight champion

This giant octopus grows up to 3m across from arm-tip to arm tip and weighs over 10kg, making it the largest octopus not only locally but in Australian waters. It has a massive appetite and loves all sorts of seafood. If they see food they want to eat it, including each other. Mothers have even been known to eat their own eggs. Before you freak out, don’t worry, she’s only eating sick eggs to protect the rest of her babies.

Southern Sand Octopus
Bury your head in the sand

This orange long-armed octopus doesn’t have the ability to change a range of colours like most other octopuses. So when it needs to make a quick escape it blasts sand out from the seafloor to build an underground hideout. Two arms poke out of the sand like snorkels so they can breathe and mucus binds the sand grains together to reinforce the walls.
This makes the hide-out as strong and gross as possible. It was the first known species of octopus to dig burrows.

Pale Octopus
What a load of rubbish

Not all heroes wear capes, but if these guys did it would be made from a plastic bag. They reuse our litter, even old bottles and cans, which are excellent hiding places and homes. Not only that, but scientists can use them to measure pollution levels in our oceans. These octopuses aren’t the lone ranger when it comes to loving trash. There are over 24 different species of octopus which use our rubbish.

Southern Blue-ringed Octopus
Lord of the rings

This golf ball-sized octopus is considered one of the deadliest in the world, and its scariest weapon is venomous saliva which it injects into its prey. Electric blue rings flash as a warning. Look but don’t touch. But don’t worry—it’s not interested in you, unless you’re a tasty crab.The venom is also found in its tissues, gills and organs, so they’re poisonous AND venomous.
The young are venomous as soon as
they hatch from their egg