From mourning orcas to distressed elephants, biological anthropologist Barbara J. King has witnessed grief and love across the animal kingdom. In this eye-opening talk, she explains the evidence behind her belief that many animals...

Paul Andersen explains how ecosystems interact with biotic and abiotic factors. He explains and gives examples of food chains and food webs. He shows how limiting factors eventually leads to logistic growth. Real data from Yellowstone...

A video entitled “Hydroelectric Dams” which investigates how hydroelectric dams affect the environment.

As Elliot Johnson of Alaska Department of Fish and Game explains in the video, the Childs Glacier monitoring station is responsible for counting the returning salmon as they complete their ocean migration back to their native spawning...

Researchers are looking into how the use of road salt during the winter could impact the Pacific salmon population by getting into the water where the fish spawn.

A troubling disappearance has plagued the Yukon River for years now. Chinook salmon represent food and culture for many Yukon First Nations, and their numbers have been dropping.

California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the San Pablo Bay on June 2, 2015 in Rodeo, California. As California continues to suffer through severe drought, low water levels on the...

California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the San Pablo Bay on June 2, 2015 in Rodeo, California. As California continues to suffer through severe drought, low water levels on the...

California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the San Pablo Bay on June 2, 2015 in Rodeo, California. As California continues to suffer through severe drought, low water levels on the...

California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the San Pablo Bay on June 2, 2015 in Rodeo, California. As California continues to suffer through severe drought, low water levels on the...

California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the San Pablo Bay on June 2, 2015 in Rodeo, California. As California continues to suffer through severe drought, low water levels on the...

MLS tracking shot from boat quickly passing line of small row boats with fishermen trying to catch Chinook salmon / MLS ships lined up with fishermen casting, fishing and sitting / MS man standing in boat, holding something up / VS...

ECU, California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the Mare Island Strait on April 22, 2014 in Vallejo, California. As California continues to suffer through its worse drought in...

ELS, California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the Mare Island Strait on April 22, 2014 in Vallejo, California. As California continues to suffer through its worse drought in...

ECU, California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the Mare Island Strait on April 22, 2014 in Vallejo, California. As California continues to suffer through its worse drought in...

MS, California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the Mare Island Strait on April 22, 2014 in Vallejo, California. As California continues to suffer through its worse drought in...

MS, California Department of Fish and Game workers release thousands of fingerling Chinook salmon into the Mare Island Strait on April 22, 2014 in Vallejo, California. As California continues to suffer through its worse drought in...

The order diverts water from the northern half of the state to farmers in the southern half.