Earth Is on the Cusp of the Sixth Mass Extinction. Here’s What Paleontologists Want You to Know

Rhinos, elephants, whales and sharks — the list of endangered species is long and depressing. But it’s not just these big, beautiful, familiar animals at risk. Earth is hemorrhaging species, from mammals to fish and insects. The loss of biodiversity we’re facing right now is staggering, thanks to habitat loss, pollution, climate change and other calamities.

There have been five mass extinctions in the history of planet Earth. We’re on the threshold of a sixth. But extinction events don’t happen overnight. They unfold over millions of years. For humans that live maybe 80 or 90-some years, that’s very hard to wrap our minds around.

To get an idea of how to think about the sixth mass extinction, I spoke to people who’ve intensively studied the first five: paleontologists. I asked them what they’d like the rest of us to know. And I asked them what, in these scary times, gives

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