Scientists snare 'superprawn' off New Zealand

Scientists have captured a "supergiant" crustacean in waters seven kilometres (4.5 miles) deep off New Zealand, measuring 10 times the normal size of related species.

Fossilised 429-mln-year-old eye mirrors modern insect vision

An exquisitely well preserved 429-million-year-old eye from a marine creature that went extinct before dinosaurs even existed had vision comparable to modern-day bees and dragonflies, researchers said Thursday.

'Walking' shark discovered in Indonesia

A new species of shark that "walks" along the seabed using its fins as tiny legs has been discovered in eastern Indonesia, an environmental group said Friday.

Cheap solar cells made from shrimp shells

The materials chitin and chitosan found in the shells are abundant and significantly cheaper to produce than the expensive metals such as ruthenium, which is similar to platinum, that are currently used in making nanostructured ...

Sprayable foam that slows bleeding could save lives

Traumatic injuries, whether from serious car accidents, street violence or military combat, can lead to significant blood loss and death. But using a material derived from crustacean shells, scientists have now developed ...

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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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