A heron catches a fish in Orlando, Florida. Photo: AFP A heron catches a fish in Orlando, Florida. Photo: AFP
A heron catches a fish in Orlando, Florida. Photo: AFP

Rising carbon dioxide in oceans makes fish lose fear of predators, scientists say

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A heron catches a fish in Orlando, Florida. Photo: AFP A heron catches a fish in Orlando, Florida. Photo: AFP
A heron catches a fish in Orlando, Florida. Photo: AFP
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