According to this article water voles have started eating frogs legs. The behaviour is somewhat unusual because the creatures are usually vegetarian. Ecologists from British Waterways discovered the behaviour during a recent survey of the Kennet and Avon Canal in Berkshire. They were surprised to find large numbers of dead frogs with their legs removed at the voles feeding stations. It seems that this is the first recorded evidence that water voles have started to supplement their diet with meat. It is thought that it might be down to pregnant mothers turning to a new food because they lack protein in their diet. It seems that they only eat the legs because they are too small to manage the whole frog.
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