Illustration of an Amoeba proteus protozoan. This is a single-celled freshwater animal that inhabits lakes, ponds and slow rivers. It moves by extending a pseudopod (false foot), anchoring it, then moving the rest of its body towards it. It feeds on bacteria and smaller protozoa (such as those at lower right), surrounding its prey with pseudopodia before engulfing them into its body. A. proteus can reach a size of around 0.6 millimetres in diameter.
July 31st, 2016
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