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Molluscs are a large phylum of invertebrate animals, many of which have shells. Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons).
Amphioctopus marginatus eating a crab. The cephalopod radula consists of multiple symmetrical rows of up to nine teeth [101] – thirteen in fossil classes. [102] The organ is reduced or even vestigial in certain octopus species and is absent in Spirula. [102]
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]
The more scientists study octopuses, the more we learn how fascinating these creatures really are. Octopuses are incredibly intelligent, displaying all kinds of amazing behavior like completing ...
A molluscivore is a carnivorous animal that specialises in feeding on molluscs such as gastropods, bivalves, brachiopods and cephalopods.Known molluscivores include numerous predatory (and often cannibalistic) molluscs, (e.g.octopuses, murexes, decollate snails and oyster drills), arthropods such as crabs and firefly larvae, and, vertebrates such as fish, birds and mammals. [1]
They eat small crustaceans, including crabs, hermit crabs, shrimp, and other small sea animals. They are one of the world's most venomous marine animals. [ 3 ] Despite their small size—12 to 20 cm (5 to 8 in)—and relatively docile nature, they are very dangerous if provoked when handled because their venom contains a powerful neurotoxin ...
Octopus at Tsukiji fish market Fishermen hunting octopus. People of some cultures eat octopus. The arms and sometimes other body parts are prepared in various ways, often varying by species and/or geography. Octopuses are sometimes eaten or prepared alive, a practice that is controversial due to scientific evidence that octopuses experience pain.
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.