Extinction /

Our planet's untouched natural environments are shrinking, due to pressure from human populations. As these areas decline, the creatures adapted to live in them face a decline in numbers, and sometimes even extinction altogether. Many biologists believe that if we don't act quickly, half t...

Full description

Other Authors: Rogers, Simon, (Narrator)
Language: English
Published: Geelong, Victoria : Switch International, 2012.
Alexander Street Press, LLC.
Series: Extreme environments.
Subjects:
Online Access: Click Here to Access Streaming Video.Normandale users only. Must be on campus or have valid library card to view video
Format: Electronic Video Videotape Videorecording Electronic Resource URL Resource
Summary: Our planet's untouched natural environments are shrinking, due to pressure from human populations. As these areas decline, the creatures adapted to live in them face a decline in numbers, and sometimes even extinction altogether. Many biologists believe that if we don't act quickly, half the world's species will be gone in 100 years. A report called the Living Planet Index reveals that from 1970 to 2000, populations of terrestrial and marine species dropped by 30 percent, while freshwater populations went down by a massive fifty percent. - Website
Physical Description: 1 online resource (23 minutes, 16 seconds) : sound, color, digital.
Playing Time: 00:23:05
Format: Mode of access: Internet