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 »

Different classes of mollusk eat in various ways, depending on their body structure, environment and physical capabilities. Most mollusks have a tongue-like organ, called a radula (which is rough like sandpaper), that th... More »

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There are approximately 300 different octopuses in the world today including the greater blue-ringed octopus and the common octopus. Scientists are finding more and more that studies show octopuses as sentient beings. More »

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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