Articles on Keystone species
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Less than a century ago, Colorado hunted, trapped and poisoned all the wolves within its borders. Today it’s restoring them – a change that reflects a profound shift in human thinking.
Restoring entire ecosystems is a difficult and expensive process. Thankfully, certain species, called ecosystem engineers, can make restoration easier. Gaining social and political support is critical too.
If the situation doesn’t change, Africa – indeed, the world – may lose one of its most iconic animal species.
Local adaptation allows plants and animals to thrive in a diversity of places. Sometimes adaptation sharpens patterns of where organisms live, but 85% of the time, it creates a more homogeneous world.



