The Hydra is a fresh water polyp. It is not truely microscopic because an adult can be 2 centimeters long. But this young hydra is only a couple of millimeters. It is still capable of eating big waterfleas and copepods. For this it uses its long tentacles armed with tiny poisonous darts.


All comments to the author Wim van Egmond are welcomed.

Visit Wims home page for links to his many web pages on microscopy

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Published in the February 2002 edition of Micscape Magazine.

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