When officials gather for an international summit on biodiversity next month, they might look to remind the world why species matter to humans: for producing oxygen, finding new drugs, making agricultural crops more productive, and something far less tangible — a sense of wonder.
We live in what is paradoxically a great age of discovery and also of mass extinction. Astonishing new species turn up daily, as new roads and new technologies penetrate formerly remote habitats. And species also vanish forever, at what scientists estimate to be 100 to 1,000 times the normal rate of extinction.
Over the past few years, as I was working on a book about the history of species discovery, I often found myself coming back to a fundamental question: Why do species matter?
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