Search results
Results from the WOW.Com Content Network
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]
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]
A form of melanin makes up the ink used by many cephalopods (see cephalopod ink) as a defense mechanism against predators. Melanins also protect microorganisms, such as bacteria and fungi, against stresses that involve cell damage such as UV radiation from the sun and reactive oxygen species .
These ends create thousands of tiny wounds in the skin, which puts the body's immune system into hyperdrive. Blood cells called macrophages go to the site of the wound and engulf the ink particles ...
[20] [21] [22] Among cephalopod recipes, both octopus and squid are used in dishes such as the popular fried calamari, [23] and in sushi and sashimi. [24] Among bivalve recipes, clams are made into soups called chowders , [ 25 ] or served as a sauce with pasta in dishes such as spaghetti alle vongole , [ 26 ] while mussels are widely eaten as ...
Cuttlebone, also known as cuttlefish bone, is a hard, brittle internal structure (an internal shell) found in all members of the family Sepiidae, commonly known as cuttlefish, within the cephalopods. In other cephalopod families it is called a gladius. Cuttlebone is composed primarily of aragonite.