Of the roughly 1 million named insect species on Earth, about 400,000 are beetles.
And that’s just the beetles described so far. Scientists typically describe thousands of new species each year.
So — why so many beetle species?
Entomologist Caroline Chaboo: “We don’t know the precise answer.”
But clues are emerging.
🔗 "Why are there so many beetle species?"
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Knowable Magazine | Annual Reviews
Why are there so many beetle species?
Diet played a key role in the evolution of the vast beetle family tree


