Otters, water voles and species of freshwater fish which had all but vanished from waterways have made a dramatic recovery following the healthiest decade for rivers since the industrial revolution. The toxic effects of pesticides nearly wiped out the wild otter in the 1970s, but steady improvements in water quality mean their numbers are expected to make a full recovery. Otters may already have reached their maximum capacity in parts of the south-west of England, Cumbria and Northumbria. In the past 30 years, positive sightings have risen 10-fold, says a report by the Environment Agency. Read more...
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