Moray eels, fish, seals, sperm whales, sea otters, and many birds prey on octopuses.

There is more danger lurking around the ocean than you may be aware of. From the deadly venom of a blue-ringed octopus, to the ginormous bite of a great white shark and the powerful sting of a box jellyfish, it’s always important to be aware of your surroundings.

The shark may seem invincible, but research has shown the creature does have predators. Among them is one that might surprise you: the giant Pacific octopus (Enteroctopus dofleini). This octopus is large enough to capture and consume small sharks.

The tiny blue-ringed octopus, one of the world’s most venomous animals, can kill an adult human in minutes. These rings are a warning when the animal is threatened. If a predator doesn’t leave, the octopus then attacks by ejecting venom that causes paralysis and, later, death.

Intelligence. The octopus has a complex nervous system and is capable of learning and demonstrating memory. In both laboratory and ocean settings, the octopus is known to recognize faces.

Octopus feel pain and they feel themselves being chopped up and eaten alive. If you look at us, most of our neurons are in our brain, and for the octopus, three-fifths of its neurons are in its arms.” Furthermore, not only do octopus experience physical pain when abused, they are capable of feeling emotional pain too.

Cephalapod attacks on humans have been reported since ancient times. Cephalopods are members of the class Cephalopoda, which include all squid, octopuses, cuttlefish, and nautiluses. Some members of the group are capable of causing injury or even death to humans.

There isn’t evidence that these squids have the ability to prey on the whales. Squids we do know about are predators of fish mainly. Giant squids and their cousins are simply too dedicate to to successfully harm sperm whales significantly.

Giant squid live up to their name: the largest giant squid ever recorded by scientists was almost 43 feet (13 meters) long, and may have weighed nearly a ton. You’d think such a huge animal wouldn’t be hard to miss.

Bishop Erik Pontoppidan wrote extensively about the Kraken in his 1750s book The Natural History of Norway. In it, he proposed that this great beast ate a great deal of fish, and therefore his waste must also be fairly fishy.

The film deprives the audience of the poignant moment Jones carried out the command, instead cutting to the already-dead body. Judging by the brief glimpse of its carcass the Kraken died by beaching itself, as the corpse hasn’t been beheaded or finned when the heroes come across it.

Although fictional and the subject of myth, the legend of the Kraken continues to the present day, with numerous references in film, literature, television, and other popular culture topics.