Cymothoa exigua is a tiny crustacean that sneaks up on a fish (specifically, a red snapper) and works its way in through the gills. Typical parasite behavior so far.
Then it attaches itself to the base of the fish's tongue, the tongue evidently being the tastiest part of the fish (get it!?). The parasite uses its claws to dig into the tongue and drink the fish's blood--and that's just the beginning
Cymothoa Exigua in Human
It is currently believed that Cymothoa Exigua are not harmful to humans unless picked up alive, in which case they can bite.
A tongue-eating parasite inside the mouth of a red snapper purchased from a London fishmonger recently revolted its buyer and fascinated scientists.
Previously, scientists believed fish infected with the parasite, nicknamed the "tongue louse," existed solely in the Gulf of California. The find in England suggests the parasite's range may be expanding, according to a recent press release issued by a museum in England.
But does the Cymothoa mouth-squatter leave its fishy friend tongueless? Of course not. It does what any crafty parasite would do and replaces the old tongue with its own body.
The fish is actually able to use the parasite just like a normal tongue, only it has to share all the food with its new friend. Yes, the whole foster-tongue thing seems like a pretty nice gesture on the part of ol' Cymothoa until you remember there was nothing wrong with the fish's old tongue in the first place.
Cymothoa Exigua Life cycle
Not much is known about the life cycle of Cymothoa Exigua. It exhibits sexual reproduction. It is likely that juveniles first attach to the gills of a fish and become males. As they mature, they become females, with mating likely occurring on the gills. If there is no female present, within a pair of two males, one male can turn into a female after it grows to 10mm in length. The female then makes its way to the fish's mouth where it uses its front claws to attach to the fish’s tongue.
Varicose Veins Causes, Symptoms and Treatment Varicose veins are swollen, stretched veins in the legs, close to the surface of the skin, caused by pooling of blood. Varicose veins alone are not too serious, but they may lead to more serious condition, such as skin ulcer, phlebitis (inflammation of a vein), or thrombosis (blood clot formation).
Varicose Veins Causes
Blood from the legs must return to the heart uphill, against the force of gravity, so the veins in the legs gave one-way valves to prevent blood from flowing back down toward the feet. When pressure on the veins stretches them or when the valves are injured in some way, the valves cannot close properly, and some blood travels back down. This blood accumulates in pools, which stretch the veins even more.
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Nervous System, Digestive System and Circulator System Nervous System
The body is provided with a sturdy frame in the form of a bony skeleton and hundreds of muscles are arranged in and around the body framework to provide a means of movement. This entire mechanism would be useless without some centralized means of control and coordination.
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Gastroenteritis Symptoms in Children If gastroenteritis in a child is severe enough to require admission to a hospital, then it is important to distinguish between bacterial and viral infections. Bacteria, Shigella and Campylobacter, for example, and parasites like Giardia can be treated with antibiotics.
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US judge blocks graphic warning on cigarette U.S. District Judge Richard Leon, in a 29-page ruling Monday, granted the preliminary injunction because he believed there was a "substantial likelihood" the cigarette companies ultimately would win "on the merits of their position that these mandatory graphic images unconstitutionally compel speech."