|
![]() |
|
![]() |
|||||||||||||||
![]() |
![]() |
||||||||||||||
![]() |
When Species Die |
![]() |
|||||||||||||
![]() |
Five mass extinctions have occurred since life began on Earth. Are humans causing the next mass extinction? And what does evolutionary theory predict for the world we will leave to our descendants? |
|
|||||||||||||
![]() |
![]() |
||||||||||||||
![]() |
Show 3: Extinction!Preview:
QuickTime or
RealPlayer
Buy the Video (entire series)
Help television evolve.
Make a pledge to your PBS station.
|
||||||||||||||
![]() |
|||||||||||||||
|