Facts about Jellyfish

Imrйdy’s attempts to improve Hungary’s diplomatic relations with England initially made him unpopular with Germany and Italy.

Serious stings may cause anaphylaxis and eventual paralysis, and hence people stung by jellyfish (or some box jellyfish, another type of cnidarian) must get out of the water to avoid drowning.

Contrary to popular belief, the menacingly infamous Portuguese Man o' War (Physalia) is not actually a jellyfish, but a cnidarian colony of hydrozoan polyps (Class Hydrozoa).

The name "Korea(??)" derives from the Goryeo(??) period of Korean history, which in turn referred to the ancient kingdom of Goguryeo.

Sliced and marinated jellyfish bells (often known as sesame jellyfish or jellyfish salad) are a common appetizer in Chinese cuisine.

Increased nutrients in the water, such as that caused by agricultural runoff, has also been cited as an antecedent to the proliferation of jellyfish numbers.

Many jellyfish can bud off new medusae directly from the medusan stage.

The jellyfish can use these to determine up from down, seemingly basing its judgment on the stimuli of sunlight shining on the surface of the water.

Some speculate that these blooms may be attributed to overfishing, resulting in jellyfish taking the place of fish that normally would consume the same prey.

Jellyfish have limited control over their movement and mostly free-float, but can use a hydrostatic skeleton that controls the water pouch in their body to actuate vertical movement.

Jellyfish also have ocelli that cannot form images, but are sensitive to light.

Most jellyfish pass through two different body forms during their life cycle.

A group of jellyfish is often called a "smack."

The salted jellyfish does not have any fishy or unpleasant odors.

Jellyfish can detect the touch of other animals using a nervous system called a nerve net, which is found in its epidermis.

Each tentacle of a jellyfish is covered with these stinging cells, which can sting or kill other animals.

Many species of jellyfish are also capable of congregating into large swarms or "blooms" consisting of hundreds or even thousands of individuals.

Jellyfish are dioecious; that is, they are either male or female.

Jellyfish will sometimes mass breed during blooms, raising ecological concern for a possible jellyfish outbreak.

Jellyfish are commonly displayed in aquariums across the United States and in other countries.

A Korean version of the dish, haepari naengchae (cold jellyfish salad), is a summertime delicacy in the country, and is usually served with sweet and sour seasoning with mustard.

Jellyfish can be found in every ocean in the world.

Sea wasp jellyfish have killed dozens of people along the coast of Australia (Towle 1989).

Jellyfish have an incomplete digestive system, meaning that the same orifice is used for both food intake and waste expulsion.

Most jellyfish use them to secure prey or as a defense mechanism.

Areas seriously affected by jellyfish blooms include the northern Gulf of Mexico, where "moon jellies have formed a kind of gelatinous net that stretches from end to end across the gulf," and the Adriatic Sea.

The first is the polyp stage; in this phase, the jellyfish takes the form of either a sessile stalk that catches passing food, or a similar free-floating configuration.

Packages of jellyfish bells can be bought at Chinese grocery stores in a salted and semi-desiccated form, which is usually yellow or slightly brownish in color.

Jellyfish do not have a specialized digestive system, osmoregulatory system, central nervous system, respiratory system, or circulatory system.

Most jellyfish are passive drifters that feed on small fish and zooplankton that become caught in their tentacles.

When stung by a jellyfish, first aid may be in order.

Jellyfish are marine invertebrates belonging to the Scyphozoan class of the Cnidaria phylum.