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

@Sheril All Life will end though in 8 billion years when the Sun starts expanding. That isn't enough time for intelligent life to arise again. So we are probably Life on Earth's last chance to expand beyond this planet.