91福利社
91福利社page
Accessibility links
Skip to content
Accessibility Help
Notifications
91福利社
News
Sport
Weather
iPlayer
Sounds
Bitesize
CBeebies
C91福利社
Food
More menu
91福利社
News
Sport
Weather
iPlayer
Sounds
Bitesize
CBeebies
C91福利社
Food
Close menu
91福利社 Two
Horizon
91福利社
Episodes
Clips
Galleries
Information and Support
Main content
2002-2003
Horizon
Series exploring topical scientific issues
On iPlayer
Not available
Supporting Content
Permian extinction phases
—
The Day the Earth Nearly Died
Duration:
2:31
Permian extinction explained
—
The Day the Earth Nearly Died
Duration:
2:41
Volcanic monster
—
The Day the Earth Nearly Died
Duration:
2:28
Freeze and burn
—
The Day the Earth Nearly Died
Duration:
3:52
