Predators of the blue-ringed octopus include gropers, moray eels, sharks and snappers. At just 5 to 7 inches in size, the species is an easy target for these larger fish that share its territory. More »

The octopus inhabits all oceans in depths that vary from 3 miles to more shallow waters along shorelines. They prefer to live in protected areas along the ocean floor such as coral reefs and rocky crevices. More »

When threatened, the blue-ringed octopus can produce a powerful neurotoxin that is strong enough to kill 26 people. Fortunately, there are some physical signs that the octopus may be about to produce its toxin, including... More »

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Some enemies of the octopus include eels, sharks, halibut, ling cod and dolphins. The octopus uses camouflage to protect itself from predators, which allows it to hide in plain sight. It also releases a cloud of black sm... More »

Predators of the octopus include eels, dolphins and sharks, among others. Octopi have many means of deterring predators, including the ability to detach an arm if it is in a predator's grasp and ink glands to release clo... More »

The octopus mainly eats crabs and other shelled invertebrates, though they do eat fish and small sharks as well. The fact that they eat crabs primarily is the reason why an octopus has a beak. More »

Sharks, killer whales and tuna are the main eaters of the dumbo octopus. Since it spends much of its life at depths ranging from 1,300 feet to more than 20,000 feet, the octopus does not have many predators. More »

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