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Cephalopod ink is a dark-coloured or luminous ink released into water by most species of cephalopod, usually as an escape mechanism. All cephalopods, with the exception of the Nautilidae and the Cirrina (deep-sea octopuses), [ 1 ] are able to release ink to confuse predators .
Anti-inflammatory uses [ edit ] In lab cell lines and various animal models, extracts from the hypobranchial gland have shown a variety of muscle relaxing properties including the ability to act as a neuromuscular block, an anticonvulsant, a pain killer, and a sedative.
An ink sac is an anatomical feature that is found in many cephalopod mollusks used to produce the defensive cephalopod ink. With the exception of nocturnal and very deep water cephalopods , all Coleoidea (squid, octopus and cuttlefish) which dwell in light conditions have an ink sac, which can be used to expel a cloud of dark ink in order to ...
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.
The ink and opaline are highly concentrated with free amino acids and ammonium; they are responsible for the response of the predators since predators have receptive sites for them. [4] The ink and opaline has been demonstrated to stimulate appetitive and ingestive behaviours, though opaline differs in the sense in that it inhibits ingestion.
This image is from the USF website, specifically her research lab's website. Teuthology (from Greek τεῦθος, "cuttlefish, squid", and -λογία, -logia) [1] is the study of cephalopods, which are members of the class Cephalopoda in the phylum Mollusca. Some common examples of cephalopods are octopus, squid, and cuttlefish. Teuthology is ...
Ink can also transfer on to different parts of the page when the ballot paper is folded, potentially leading to a vote being rejected if the voter appears to have picked multiple candidates.
It is not made of aragonite as most other shells are, but of calcite, with a three-layered structure [7] and a higher proportion of magnesium carbonate (7%) than other cephalopod shells. [ 8 ] The eggcase contains a bubble of air that the animal captures at the surface of the water and uses for buoyancy, similarly to other shelled cephalopods ...