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Argonauta argo, also known as the greater argonaut, is a species of pelagic octopus belonging to the genus Argonauta. The Chinese name for this species translates as "white sea-horse's nest". [2] A. argo was the first argonaut species to be described and is consequently the type species of the genus.
The beaks of Argonauta species are distinctive, being characterised by a very small rostrum and a fold that runs to the lower edge or near the free corner. The rostrum is "pinched in" at the sides, making it much narrower than in other octopuses, with the exception of the closely allied monotypic genera Ocythoe and Vitreledonella .
Octopus is a common ingredient in Japanese cuisine, including sushi, sashimi, karaage, stew, sour salad, takoyaki and akashiyaki. Takoyaki is a ball-shaped snack made of a wheat flour-based batter and cooked in a special takoyaki pan. It is typically filled with minced or diced octopus, tempura scraps , pickled ginger, and green onion.
To understand the inner details of octopus lives, researchers dived for about a month at a reef off the coast of Eilat, Israel, and tracked 13 octopuses for a total of 120 hours using several cameras.
Sometimes the octopus catches more prey than it can eat, and the den is often surrounded by a midden of dead and uneaten food items. Other creatures, such as fish, crabs, molluscs and echinoderms, often share the den with the octopus, either because they have arrived as scavengers, or because they have survived capture. [86]
A cephalopod / ˈ s ɛ f ə l ə p ɒ d / is any member of the molluscan class Cephalopoda / s ɛ f ə ˈ l ɒ p ə d ə / (Greek plural κεφαλόποδες, kephalópodes; "head-feet") [3] such as a squid, octopus, cuttlefish, or nautilus.
A bait ball, or baitball, occurs when small fish swarm in a tightly packed spherical formation about a common centre. [1] It is a last-ditch defensive measure adopted by small schooling fish when they are threatened by predators. Small schooling fish are eaten by many types of predators, and for this reason they are called bait fish or forage fish.
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