Species that lack significant levels of genetic diversity have a big
problem. And it's not just about ending up with tiger and kiwi bird
versions of Cletus the Slack-Jawed Yokel. Beyond the risk of inbreeding, genetic diversity supplies the tools that help a species adapt to change.
If there's not enough of it, then the species is more likely to die out
when subjected to stressful conditions ... like, say, climate change.
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