In this talk, ecologist Mary Power discusses how a river's community of herbivores and predators is affected by changes in river flow.

In this talk, mathematical biologist Corina Tarnita discusses how to model the growth of animal populations using examples from Gorongosa National Park in Mozambique.

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.

In this talk, marine biologist Stephen Palumbi discusses how coral reefs are threatened by climate change and how to protect them.