Thursday 11 October 2012

Thames invaders...

From the Metro of 11th October 2012: Meet the red signal crayfish and fellow foreigner the goldfish which are just two of the species to have made the River Thames "one of the most highly invaded freshwater systems in the world." The intruders are among 96 non-native species now living on the river and its tributaries, scientists from Queen Mary University of London found.

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