|
major corporate support for Nature provided by
Segments from the NATURE episode "The Good, The Bad and the Grizzly" examine how human interaction with grizzlies has alternately endangered and restored the population, and how humans coexist with grizzlies today.
(6 votes)
Loading ...
In this video-enhanced lesson, students will learn how human beings have interacted with and impacted the lives of grizzly bears in Yellowstone Park. (Grades 9-12)
(13 votes) Loading ...
Excerpts from NATURE examine interrelationships between sharks and other species in the marine ecology. Human impact in the ecosystem includes the shark fin industry.
(9 votes) Loading ...
This video-enhanced lesson focuses on symbiosis and ecological relationships. Using sharks and marine species as examples, students will investigate the many ways that species that live in close proximity to each other might interact in an ecosystem, and will then explore the ways that ecosystems can be thrown out of balance, often as a result of human action. (Grades 9-12)
(23 votes) Loading ...
Longliners -- which set lines that can be up to 15 miles long and are laden with hundreds or thousands of baited hooks -- pose an increasingly potent threat to sharks.
(3 votes) Loading ...
Hardy Jones, the filmmaker behind NATURE's "The Dolphin Defender," is a former journalist with CBS News and UPI. NATURE Online interviewed him in May 2005.
(17 votes) Loading ...
Chemical pollution, including pollution from polychlorinated biphenyls (PCBs), has been linked to health and reproductive problems in dolphins and orcas.
(13 votes) Loading ...
Nearly a third of parrots worldwide are threatened -- a statistic three times greater than the threat to all bird species.
(11 votes) Loading ...
Even as our actions have imperiled the red knot, we can also preserve the species, by regulating the fishing industry and keeping clear of the beaches that the knots rely on during migration.
(8 votes) Loading ...
Ecologists once thought ecosystems were largely influenced from the bottom up, but predators can also be the drivers of the system.
(8 votes) Loading ...
Produced by 
©2009 Educational Broadcasting Corporation. All rights reserved.
Produced by THIRTEEN ©2009 Educational Broadcasting Corporation. All rights reserved.
Major corporate support for Nature is provided by SC Johnson, Canon, CPB.
