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Like many other octopuses, the blanket octopus uses ink to intimidate potential predators. [7] Also, when threatened, the female unfurls her large net-like membranes that spread out and billow in the water, greatly increasing her apparent size. Blanket octopuses usually live in coral reefs, where they hunt for food, which consists of small fish.
The common blanket octopus or violet blanket octopus (Tremoctopus violaceus) [4] is a large octopus of the family Tremoctopodidae found worldwide in the epipelagic zone of warm seas. The degree of sexual dimorphism in this species is very high, with females growing up to two meters in length, whereas males grow to about 2.4 cm.
The blanket octopus male is an example of sexual-evolutionary dwarfism; females grow 10,000 to 40,000 times larger than the males and the sex ratio between males and females can be distinguished right after hatching of the eggs. [127] Egg cases laid by a female squid
A new study found that some members of an octopus species hunt cooperatively in groups with fish. Video shows octopuses punching their companion fish to keep them on task and contributing to the hunt.
The creatures are known as dumbo octopuses because of their “large” fins.
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Scavengers and other organisms often attempt to eat octopus eggs, even when the female is present to protect them. Giant Pacific octopus paralarvae are preyed upon by many other zooplankton and filter feeders. Marine mammals, such as harbor seals, sea otters, and sperm whales depend upon the giant Pacific octopus as a source of food.
Tremoctopus gelatus, the gelatinous blanket octopus, is a species of octopod formally described by Thomas in 1977. The length of T. gelatus is unknown. The gelatinous blanket octopus lives in pelagic subtropical waters of the Atlantic Ocean .