1 Over five years, Adi and his team followed 15 giant otter groups. They discovered otters living in lakes in protected areas with higher fish abundance, foraged more efficiently and so spent less time looking for food.

2  Adi’s team showed that lakes in areas with gold-mining had lower fish numbers, polluted water and degraded bank habitats.

3 Adi’s work showed otters can survive in degraded and lower-quality habitats such as old mining ponds and those lakes with lower fish abundance. If these areas are restored, both fish and otter numbers can bounce back. 

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