Mass Extinction: Life at the Brink

Mass Extinction: Life at the Brink

  • Free
  • HD
  • TV-PG

It's death on an unimaginable scale, when a majority of Earth's species quickly die out. It's called "mass extinction," and it's happened at least five times before. Cataclysms, such as supervolcanoes or asteroids, are thought to cause these events, but some experts believe a manmade mass extinction could be next. Is our planet in trouble?

Show

Mass Extinction: Life at the Brink

New

46 Minutes

Our planet has experienced at least five mass extinctions. Are we headed for another one?