GB
Upload

Loading icon Loading...

Alert icon

This video is unavailable.

Mass Extinctions

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to like SciShow's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to dislike SciShow's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to add SciShow's video to your playlist.

Published on May 21, 2012

Hank takes us on a trip through time to revisit the 5 major mass extinction events that have impacted species over the Earth's history, and leaves us with some thoughts about what could possibly be the sixth event - the one caused by human activities.

Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow

References for this episode can be found in the Google document here: http://bit.ly/KOHsM5

extinction, mass extinction, scishow, science, biology, climate change, species, great dying, geological time scale, co2, temperature change, extinction rate, time machine, ordovician-silurian, die-off, glacier, glacial, gondwana, pangea, gamma ray burst, hypernova, ozone layer, extinction pulse, asteroid impact, supervolcano, late devonian extinctions, permian-triassic, dinosaur, cretaceous-tertiary, k-t, human impact

  • Category

  • License

    Standard YouTube License

Loading icon Loading...

Loading icon Loading...

Loading icon Loading...

The interactive transcript could not be loaded.

Loading icon Loading...

Loading icon Loading...

Ratings have been disabled for this video.
Rating is available when the video has been rented.
This feature is not available right now. Please try again later.

Loading icon Loading...

Loading...
Working...
Sign in to add this to Watch Later

Add to