The Blanket Octopus rips off poisonous tentacles from the Portuguese Man o’War and uses them as weapons. The blanket octopus is truly a remarkable creature. Yep, these guys evolved to become immune to the venom of one of the ocean’s most venomous inhabitants, and they are ripping its tentacles to use as whips.
What do blanket octopus look like?
The blanket octopus(Tremoctopus spp.) spends its entire life in the open ocean, and looks like a Cher outfit from the 60s. Between the arms of the blanket octopus are long sheets of patterned flesh. When threatened, the blanket octopus extends these fleshy curtains to look like a disco icon.
Is the blanket octopus real?
Tremoctopus is a genus of pelagic cephalopods, containing four species that occupy surface to mid-waters in subtropical and tropical oceans. They are commonly known as blanket octopuses, in reference to the long, transparent webs that connect the dorsal and dorsolateral arms of the adult females.
How big is the blanket octopus?
Though the female blanket octopus is already large—growing to around 2 metres in length! In contrast, the male blanket octopus measures a mere 2.4cm—smaller than a walnut—meaning the blanket octopus have the largest gender size discrepancy in the animal kingdom!
Is octopus a female?
Octopuses are semelparous animals, which means they reproduce once and then they die. After a female octopus lays a clutch of eggs, she quits eating and wastes away; by the time the eggs hatch, she dies. Without them, the female octopuses abandoned their eggs, resumed feeding, and some even mated again.
How does an octopus get pregnant?
To mate, a male will insert his hectocotylus into the female’s mantle cavity and deposit spermatophores (sperm packets). This process may take up to several hours, depending on the species.
Why do octopuses have 9 brains?
Octopuses have 3 hearts, because two pump blood to the gills and a larger heart circulates blood to the rest of the body. Octopuses have 9 brains because, in addition to the central brain, each of 8 arms has a mini-brain that allows it to act independently.
How old is the oldest octopus?
296 million years ago
The oldest known octopus fossil belongs to an animal that lived some 296 million years ago, during the Carboniferous period. That specimen belongs to a species named Pohlsepia and is on display at the Field Museum in Chicago.
What makes the blanket octopus so unusual?
Another unusual aspect of the blanket octopus: It’s immune to the stinging cells of the highly dangerous (to humans at least) jellyfish, the Portuguese man-of-war, which it uses to its advantage by yanking the siphonophore’s tentacles off and brandishing them as weapons against predators.
Are jellyfish and Man o War the same thing?
Jellyfish vs. Man o’ War They have tentacles… they sting… and they’re avoided in the ocean. They’re basically the same, right? Despite being often mistaken as the same kind of animal, the jellyfish and Portuguese Man o’ War are actually quite different.
What does a Lion’s Mane jellyfish look like?
Identification: Lion’s mane jellyfish have a pink, yellow, orange, or reddish brown bell, that gets darker as they age. Their tentacles are thin, and often found in a mass that looks like a lion’s mane. Where it is Found: Lion’s mane jellyfish are a cool water species—they are most often found in waters less than 68 degrees Fahrenheit.
What is the difference between ctenophores and jellyfish?
Ctenophores have tentacles with colloblasts, which are used to capture prey. Jellyfish have nematocysts in their tentacles, which shoot out venom to immobilize prey. The colloblasts in a ctenophore’s tentacles don’t shoot out venom. Instead, they release a glue that sticks to the prey.
