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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 .
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 ...
Cephalopod radulae are known from fossil deposits dating back to the Ordovician. [103] They are usually preserved within the cephalopod's body chamber, commonly in conjunction with the mandibles; but this need not always be the case; [104] many radulae are preserved in a range of settings in the Mason Creek. [105]
The ink can be ejected to create a "smoke screen" to hide the cuttlefish's escape, or it can be released as a pseudomorph of similar size to the cuttlefish, acting as a decoy while the cuttlefish swims away. [32] Human use of this substance is wide-ranged. A common use is in cooking with squid ink to darken and flavor rice and pasta.
The elongate jewel squid (Histioteuthis reversa), so called because the photophores festooning its body make it appear bejewelled. Diagram of a cephalopod's photophore, in vertical section. A photophore is a glandular organ that appears as luminous spots on marine animals, including fish and cephalopods. The organ can be simple, or as complex ...
These engulfed ink particles go through the lymphatic system and are excreted by the liver. But the macrophages that don't make it back remain in the dermis, leaving some of the ink and making ...
In a study done on individuals from the species Dicathais orbita, a member of the Muricidae family, it was found that the bacterial community of the hypobranchial gland was highly specialized; the community was dominated by two genera, Mycoplasma and Vibrio, which are known to contain biosynthetic species. [6]
In fact, you probably worried more about hiding the ink from your parents than you did about the major health issues. However, recent research has shown that tattoo ink is actually much more ...