Water bear. Color enhanced scanning electron micrograph (SEM) of a water bear (Paramacrobiotus tonolli) feeding. Water bears (or tardigrades) are tiny invertebrates that live in aquatic and semi-aquatic habitats such as lichen and damp moss. Paramacrobiotus tonolli is a carnivorous species that feeds on nematodes and rotifers. 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: x400 when printed at 10 centimeters wide.
March 5th, 2013
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