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wood prints animal wood prints egg wood prints aquatic wood prints biology wood prints invertebrate wood prints microfauna wood prints sem wood prints semi-aquatic wood prints tardigrade wood prints tardigrades wood prints water bear wood prints

photographs animal photos egg photos aquatic photos biology photos invertebrate photos microfauna photos sem photos semi-aquatic photos tardigrade photos tardigrades photos water bear photos

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Water bear (Paramacrobiotus craterlaki) egg, close up colored scanning electron micrograph (SEM). Water bears (or tardigrades) are tiny invertebrates that live in aquatic and semi-aquatic habitats such as lichen and damp moss. They require water to obtain oxygen by gas exchange. In dry conditions, they can enter a cryptobiotic state of dessication, known as a tun, to survive. In this state, water bears can survive for up to a decade. 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 x2800 when printed 10cm wide.