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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.
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 ' .
Milnesium tardigradum is a cosmopolitan species of tardigrade that can be found in a diverse range of environments. [1] It has also been found in the sea around Antarctica . [ 2 ] M. tardigradum was described by Louis Michel François Doyère in 1840.
Batillipes mirus is a species of marine tardigrade that lives on sandy surfaces, including near beaches. [ 1 ] [ 2 ] It has cosmopolitan distribution . [ 3 ] The species is known from both marine and brackish waters .
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.
A baby tardigrade riding a nematode won $600 in Nikon's Small World in Motion Video Competition. Quinten Geldhof captured the video using a microscope and an iPhone.
Trogloarctus trionyches is a species of tardigrade. It is the only species in the genus Trogloarctus, which is part of the family Coronarctidae. [1] The species are found in the Mediterranean Sea. [2] They were first found in 1996 in an underwater cave near La Ciotat in the Bouches-du-Rhône department, southern France.
Panarthropoda is a proposed animal clade containing the extant phyla Arthropoda, Tardigrada (water bears) and Onychophora (velvet worms). [3] Panarthropods also include extinct marine legged worms known as lobopodians ("Lobopodia"), a paraphyletic group where the last common ancestor and basal members of each extant panarthropod phylum are thought to have risen.