Can fish catch colds?

The simple answer to the question of whether fish can catch a cold is: no. This is because fish don't have lungs or a respiratory tract—or a nose to breathe through, for that matter. This is why you'll never see a fish ...

Researchers discover method for preventing limescale

From cloudy glasses to deposits in dishwashers—limescale is a ubiquitous problem. An international research collaboration led by two researchers at FAU has now investigated which substances could be added to dishwasher ...

Sick sea lions spotted along Ventura County coast

Sea lions are being poisoned by a toxin found in plankton and reports of the sick animals being spotted along the Ventura County coast are skyrocketing, according to an animal rescue organization.

New giant deep-sea isopod discovered in the Gulf of Mexico

Researchers have identified a new species of Bathonymus, the famed genera of deep-sea isopods whose viral internet fame has made them the most famous aquatic crustaceans since Sebastian of "The Little Mermaid."

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Crustacean

Thylacocephala? Branchiopoda

Remipedia Cephalocarida Maxillopoda

Ostracoda

Malacostraca

Crustaceans (Crustacea) form a very large group of arthropods, usually treated as a subphylum, which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill and barnacles. The 50,000 described species range in size from Stygotantulus stocki at 0.1 mm (0.004 in), to the Japanese spider crab with a leg span of up to 12.5 ft (3.8 m) and a mass of 44 lb (20 kg). Like other arthropods, crustaceans have an exoskeleton, which they moult to grow. They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of biramous (two-parted) limbs, and by the nauplius form of the larvae.

Most crustaceans are free-living aquatic animals, but some are terrestrial (e.g. woodlice), some are parasitic (e.g. fish lice, tongue worms) and some are sessile (e.g. barnacles). The group has an extensive fossil record, reaching back to the Cambrian, and includes living fossils such as Triops cancriformis, which has existed apparently unchanged since the Triassic period. More than 10 million tons of crustaceans are produced by fishery or farming for human consumption, the majority of it being shrimps and prawns. Krill and copepods are not as widely fished, but may be the animals with the greatest biomass on the planet, and form a vital part of the food chain. The scientific study of crustaceans is known as carcinology (alternatively, malacostracology, crustaceology or crustalogy), and a scientist who works in carcinology is a carcinologist.

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