Water Bear #10
by Eye of Science and Science Source
Title
Water Bear #10
Artist
Eye of Science and Science Source
Medium
Photograph - Scanning Electron Micrograph
Description
Water bear (Paramacrobiotus richtersi). Color enhanced scanning electron micrograph (SEM) of a water bear. Water bears (or tardigrades) are tiny invertebrates that live in aquatic and semi-aquatic habitats such as lichen and damp moss. They have four pairs of short legs each with a set of claws at the end. Water bears require water to obtain oxygen by gas exchange. In dry conditions, they can enter a cryptobiotic state of desiccation, known as a tun, to survive. In this state, water bears can survive for up to a decade. Paramacrobiotus richtersi is a carnivorous species that feeds on nematodes, rotifers and protozoa. This specimen originated from moss samples in Tubingen, Germany. Water bears are found throughout the world, including regions of extreme temperature, such as hot springs, and extreme pressure, such as deep underwater. They can also survive high levels of radiation and the vacuum of space. Magnification: x150 when printed 10cm wide.
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March 5th, 2013
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