Learning from Past Extinctions In this talk, biologist Anthony Barnosky discusses Earth’s five mass extinctions and whether current species declines may be part of a sixth mass extinction.
Ocean Species Respond to Climate Change In this talk, marine biologist Stephen Palumbi discusses how coral reefs are threatened by climate change and how to protect them.
Dodging Extinction In this talk, biologist Anthony Barnosky discusses what steps can be taken to avoid a sixth mass extinction.