The Earth is in the middle of its sixth mass extinction. Kasey-Dee Gardner finds out why they happen in the first place, and how we can save our planet.
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Why? Tell Me Why!: Mass Extinction
The Earth is in the middle of its sixth mass extinction. Kasey-Dee Gardner finds out why they happen in the first place, and how we can save our planet.
Added: Feb 9, 2009
Views: 49296 Views
Runtime: 02:59
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