Sheril KirshenbaumJan 7, 2023

About 250M years ago, 90% of species on Earth died during the Permian extinction. All of that loss created a lot of vacant niches to fill.

And not long after, the first mammals, our ancestors, appeared.

I find it comforting to remember that life on this pale blue dot will be resilient - whether we’re part of it or not. #science #nature #history #SharedPlanet

Show threadEdward Barrow
@Sheril It is also estimated that a 5°C rise in average global temperatures will lead to the extinction of all vertebrate life on the planet. Every mammal, bird , fish and reptile. Which is much less than 90% of species but still gutwrenchingly scary. Life will endure, but not as we know it. And it will be another quarter of a billion years before anything close to us could evolve. The planet can maybe do this
Jan 7, 2023 at 9:37pmWeb