Otters & Orcas: An Alaskan Mystery
Clip: Season 38 Episode 2 | 5m 22sVideo has Closed Captions
Jim Estes tries to figure out what caused the collapse of a once-thriving kelp forest.
In this bonus scene from-The Serengeti Rules, scientist Jim Estes discovers the collapse of the kelp forest ecosystem he had once seen thriving in the 1970s. He determines how it’s caused by a ripple effect from the Pacific Northwest whaling business in the 1990s, changing the predation of orcas, thereby decimating the otter population and the kelp forest ecosystem by extension.
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...
Otters & Orcas: An Alaskan Mystery
Clip: Season 38 Episode 2 | 5m 22sVideo has Closed Captions
In this bonus scene from-The Serengeti Rules, scientist Jim Estes discovers the collapse of the kelp forest ecosystem he had once seen thriving in the 1970s. He determines how it’s caused by a ripple effect from the Pacific Northwest whaling business in the 1990s, changing the predation of orcas, thereby decimating the otter population and the kelp forest ecosystem by extension.
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John Terborgh has spent a lifetime studying the Amazon rainforest. (1m 51s)
Scientist Profile - Mary Power
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Mary Power is a freshwater ecologist who has spent her life studying river ecosystems. (1m 53s)
Scientist Profile - Tony Sinclair
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Tony Sinclair arrived in the Serengeti in 1965, looking to study the wildlife. (1m 57s)
Video has Closed Captions
Pioneering scientists make surprising discoveries that change our understanding of nature. (35s)
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, The Fairweather Foundation, Sue and Edgar Wachenheim III, Charles Rosenblum, Kathy Chiao and...