Does anyone know anything about jellyfish?
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To suprise you, Jellyfish are brainless, bloodless and heartless. So they are just floating blobs of jelly who eat.
34470
ROACH, JELLY FISH, STAR FISH, CLAM, OYSTERS, FLYS, SPIDERS
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Factors such as drought, heat and over-fishing all contribute to a rising jellyfish count.  Warmer than usual coastal waters encourage the creatures to venture closer to shore, in search of lower salt concentrations and nutrients in urban waste water and agricultural run-off. At the same time the Mediterranean's population of larger fish and turtles -- which feed on jellyfish -- has declined.
1059011
The Sydney Funnelweb Tarantula of Australia is very poisonous. Though not considered a "true" tarantula is still is a tarantula. What does that mean? Well, a box jellyfish isn't a "true" jellyfish because it is not syphozoan. It's cubozoan. But it is still a jellyfish to most people. There are some "true" tarantulas, usually from South America, that have enough venom to kill a large bird or make people need to go to the hospital but are not fatal bites. I forget its exact name but believe it or not I think its called a Bird-Eating Tarantula or something very close to that.
248445
Primaraly sharks, I have actually seen a preserved Oarfish and it's tail was missing as if bitten of by a shark. The Oarfish is exceptionally rare and live upto 3000 feet deep! The Oarfish can be anywhere from 10 to 50 feet long, and weigh as much as 600 pounds. It lives in the tropical waters of the world (such as the gulf of mexico) and only venture ashore when sick or dying. I remember seeing a photo of a 23ft long Oarfish that washed ahore near a naval training base it was phenomenal. The Oarfish may have been the cause of the infamouse "sea serpents" that early sailors spoke of.It eats small fish, jellyfish, and zooplankton.It is of no danger to humans, and of no commercial value (thank goodness) because it's meat is rather gelatinous. I hope to see a live one some day because it is so mysterious: only until recently was a live one photographed in it's natural habitat. I truly hope I have aided you some form thank you for the oppurtunity to answer your question!
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The only one I can think of is the shellfish called mussels.\n\nThese links should help you figure it out.
695162
They COD if you're not careful.  PLAICE them in a shaded area. They like music - it's calms them as long as it's on pitch - get a piano TUNA if necessary. Don't play it too loud though - it could be a bit of a SHARK to their system  They are partial to modern art too - particularly Jackson POLLOCK!\n\nDid you ask this question on PORPOISE to get answers like this? Would you like me to FINish now?  Or should we KIPPER line of communication open? If so, you'll be HERRING from me again shortly!
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Go to this site: http://en.wikipedia.org/wiki/Starfish\nYou should find all the necessary info on Starfish.
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Yes, what you saw were pelagic siphonophores. These are colonial animals. The Portuguese Man o War is the most widely known siphonophore.\nAmong the more important predators of midwater habitats in Monterey Bay and elsewhere are the members of the Subclass Siphonophorae.   Whether siphonophores are single individuals or colonies of well-integrated polymorphic hydroid and medusoid individuals is a matter of debate among specialists.  Some species are truly impressive organisms, forming delicate chains in excess of 100 feet long.  Many others are far more diminutive and inconspicuous.  All siphonophores are predators and typically spread a veil of nematocyst-laden tentacles for capturing unsuspecting prey.  Some of the "individuals" along the length of the stem provide tentacles for defense (dactylozooids) and food capture.  Depending on the type of siphonophore, others may function as swimming bells (nectophores), aid flotation (pneumatophore), provide additional defense (bracts), digest prey (gastrozooids), or serve for reproductive functions (gonozooids).  The central stem to which all these units are attached is hollow.  The gastrovascular cavity passes throughout the stem, and extends into the float (if present), swimming bells, tentacles, bracts, gastrozooids and gonozooids.  \n\n    A bewildering array of about 150 species inhabit the oceans.  Many present difficulties in identification, even for experts. \n\nHope that helps
641160
Corals (class Anthozoa), which include sea anemones (order Actiniaria), are gastrovascular marine cnidarians (phylum Cnidaria) existing as small sea anemone-like polyps, typically forming colonies of many individuals. The group includes the important reef builders known as hermatypic corals, found in tropical oceans, and belonging to the subclass Zoantharia of order Scleractinia (formerly Madreporaria). The latter are also known as stony corals in as much as the living tissue thinly covers a skeleton composed of calcium carbonate. A coral "head" is formed of many individual polyps, each polyp only a few millimeters in diameter. The colony of polyps function essentially as a single organism by sharing nutrients via a well developed gastrovascular network, and the polyps are clones, each having the same genetic structure. Each polyp generation grows on the skeletal remains of previous generations, forming a structure that has a shape characteristic of the species, but subject to environmental influences.\n\nAlthough sea anemones can catch fish and other prey items and corals can catch plankton, they obtain much of their nutrient requirement from symbiotic unicellular dinoflagellates (type of algae) called zooxanthellae. Consequently, they are dependent upon growing in sunlight and for that reason usually found not far beneath the surface, although in clear waters corals can grow at depths of 60 m (200 ft). Other corals, notably the cold-water genus Lophelia, do not have associated algae, and can live in much deeper water, with recent finds as deep as 3000 m. Corals breed by spawning, with many corals of the same species in a region releasing gametes simultaneously over a period of one to several nights around a full moon.\n\nCorals are major contributors to the physical structure of coral reefs that develop only in tropical and subtropical waters. Some corals exist in cold waters, such as off the coast of Norway (north to at least 69° 14.24' N) and the Darwin Mounds off western Scotland. The most extensive development of extant coral reef is the Great Barrier Reef off the coast of Queensland, Australia. Indonesia is home to 581 of the world's 793 known coral reef-building coral species.\n\n\n\nHydra is a genus of simple, fresh-water animals possessing radial symmetry. Hydras are predatory animals belonging to the phylum Cnidaria and the class Hydrozoa.\n\nHydras are low power microscopical life forms and are often studied by biologists due to their regenerative powers. They can be found in most un-polluted freshwater ponds, lakes and streams in the temperate and tropical regions by gently sweeping a collecting net through weedy areas.
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Yes, it's an old trick that divers used to do.  The ammonia and acids in the urine soothe the sting of the jellyfish venom.  Not to mention that your urine is THE MOST sterile thing to your body.  It helps stop the inflammation, which is most of the pain.
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Try here:\n\nhttp://www.seaworld.org/infobooks/Beluga/beconser.html
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I posted a link below that will give you some information on Sea Monkeys. I know they are a lot smaller than you expect at first anyway. Neat thing for kids to do.
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there is some info here \n\nhttp://en.wikipedia.org/wiki/Prehistoric_fish
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A group of jellyfish is often called a 'smack'. Many species of jellyfish can congregate into large swarms or 'blooms'. The formation of these blooms is a complex process that depends on ocean currents, nutrients, temperature and oxygen content.
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There is a ton of disagreement on this subject.\n\nDo a search for lobsters and pain and you'll find sites that talk about both sides of the story.\n\nHey submitter, sorry you are too lazy to figure this out on your own. Like I said, there is a ton of disagreement. Some scientists will tell you one thing and some will tell you another. How is anyone supposed to have the "right" answer for you?
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Jellyfishes belong to the Phylum Cnidaria(=Coelenterata) & Class Scyphozoa. The most common genus is Aurelia.\n\nIn jellyfish, mode of reproduction can be both sexual and asexual(by budding). Sexual reproduction is through two larval stages- planula & ephyra.\n\nThe life cycle of a typical jellyfish involves an alteration of generations in which the animal passes through two different body forms. The dominant and conspicuous medusa is the familiar form, while the smaller polyp form is restricted to the larval stage. Jellyfish are either male or  female and reproduce sexually. The reproductive organs (gonads) develop in the lining of the gut. During reproduction, the male releases sperm through its mouth into the water column. The sperm swims into the mouth of the female where fertilizationoccurs. Early embryonic development begins either inside the female or in brood pouches along the oral arms. Small swimming larvae (planula) leave the mouth or brood pouches and enter the water column. The larvae then seek a shaded surface and attach to the bottom, forming polyps. These polyps divide and bud into young jellyfish (ephyra). In a few weeks, an ephyra will grow into an adult medusa, thus completing the complex life cycle. Jellyfish normally live three to six months. \n\nVenom apparatus: Jellyfish are equipped with a specialized venom apparatus (cnidoblast) for defense and feeding. A capsule (nematocyst) inside the cnidoblast contains a trigger and a stinging structure. The stinging structure varies according to species, but generally consists of a hollow coiled thread with barbs lining its surface. Nematocysts are concentrated on the tentacles or oral arms. A single tentacle can have hundreds or thousands of nematocysts embedded in the epidermis. Triggers of nematocysts are activated when contact is made with another object. Pressure within the nematocyst forces the stinging thread to rapidly uncoil. The thousands of nematocysts act as small harpoons, firing into prey, injecting paralyzing toxins. Stings usually paralyze or kill only small creatures but some jellyfish are harmful to humans. Jellyfish do not "attack" humans. Stings occur when swimmers or beachcombers come in contact with nematocysts. Severity of stings depends on the species of jellyfish, the penetrating power of the nematocyst, the thickness of exposed skin of the victim and the sensitivity of the victim to the venom. The majority of stings from jellyfish occur in tropical and warm temperate waters. Most species off the southeastern coast are capable of inflicting only mild stings resulting in minor discomfort.