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Tardigrades (/ ˈ t ɑːr d ɪ ɡ r eɪ d z / ⓘ), [1] known colloquially as water bears or moss piglets, [2] are a phylum of eight-legged segmented micro-animals. They were first described by the German zoologist Johann August Ephraim Goeze in 1773, who called them Kleiner Wasserbär ' little water bear ' .
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Ramazzottius is a genus of water bear or moss piglet, a tardigrade in the class Eutardigrada, named after the Italian zoologist Giuseppe Ramazzotti. Ramazzottius varieornatus (see image) is a terrestrial invertebrate that is extroardinarily tolerant of extreme conditions such as irradiation, chemicals, dehydration and high pressure. [ 2 ]
Tardigrades, which are eight-legged micro-animals, are commonly referred to as water bears or moss piglets and are found all over the world in varying extreme habitats. First discovered in 1904 and originally named Hypsibius antarcticus , Acutuncus antarcticus is the most abundant tardigrade species in Antarctica.
Eutardigrada are a class of tardigrades (Tardigrada) without lateral appendages. Primarily freshwater bound, some species have secondarily gained the ability to live in marine environments ().
Aerobius is a genus of extinct tardigrades ("water bears") of the superfamily Hypsibioidea. The genus contains a single species , A. dactylus , known from a single individual preserved in amber . The Aerobius holotype is preserved in the same piece of Late Cretaceous amber as Beorn , another extinct tardigrade.
The International Bottled Water Association has adopted a tougher standard for its members: 5 parts per trillion for one PFAS compound and 10 parts per trillion for more than one compound.
Necopinatidae is a family of water bears or moss piglets, tardigrades in the class Eutardigrada. [1] It contains the following species in two genera Apodibius. Apodibius confusus Dastych, 1983; Apodibius nuntius Binda, 1986; Apodibius richardi Vargha, 1995; Apodibius serventyi Morgan & Nicholls 1986; Necopinatum. Necopinatum mirabile Pilato, 1971