CORNWALL
Microscopic animalsExamine a drop of water from a healthy lake or pond under a microscope and you will find it teeming with tiny life forms. Some are the tiny infant stages of larger animals which will be described later. Other organisms are much simpler, such as the rotifers, or wheel animals, so called because of the shimmering rings of tiny beating hairs (cilia) which create currents to draw in food. Protozoans are the simplest animals of all, consisting of only one cell. Within the community of tiny animals, or zooplankton, there are species which help complete the decomposition of dead animal and plant material (detritus) by eating the tiniest fragments, others which eat phytoplankton, and yet others which eat smaller zooplankton.
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Cornwall Wildlife Trust
Five Acres, Allet, Truro, Cornwall, TR4 9DJ
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