Water Bears (Tardigrades)
A collection of informative articles with an overview by Mol smith
Animated image by David Walker
(Jan/Feb 2015)

Discover more amazing pages in our Micscape magazine!

Tardigrades are microscopic animals which are also called Water bears due to their slight resemblance to bears. Over 1,150 tardigrade species have been identified. Tardigrades can survive in extreme environments. For example, they can withstand temperatures from just above absolute zero to well above the boiling point of water, pressures about six times greater than those found in the deepest ocean trenches, ionizing radiation at doses hundreds of times higher than the lethal dose for a human, and the vacuum of outer space. They can go without food or water for more than 10 years, drying out to the point where they are 3% or less water, only to rehydrate, forage, and reproduce. They are not considered extremophile because they are not adapted to live in these conditions. Their chances of dying increase the longer they are exposed to the extreme environments, whereas extremophiles are organisms that can thrive in a physically or geochemically extreme condition that would be detrimental to most life on Earth. [ more from wikipedia... ]

 Offsite Articles

FCPS Education

Image is copyright of FCPS Education. Click on image for more of their images
and resources on Tardigrades.


Bio-Unc.Edu dedicated resource
Their slide show is shared (right).

Water bear / Tardigrade slide show


Images of Water bears
Google World Wide Images


Youtube Video

A 3D model of a Water Bear

You can acquire a real 3d model of a waterbear here!

Download Video: Closed Format: 'MP4' Open Format: 'Ogg'

Was this page useful?
Search for everything in the
microscopic world with the



  Microscopy UK Front Page
Micscape Magazine
Article Library

Microscopy UK or their contributors.

Published in 2015 from articles published in Micscape Magazine.

Please report any Web problems or offer general comments to the Micscape Editor .

Micscape is the on-line monthly magazine of the Microscopy UK web site at Microscopy-UK

Onview.net Ltd, Microscopy-UK, and all contributors 1995 onwards. All rights reserved.
Main site is at