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Life Science: Beluga Whales

Related Article: Learn more about endangered species.

Since beluga whales settled into the mouth of the St. Lawrence River some 10,000 years ago, their population has drastically declined. What is happening to the St. Lawrence belugas? What is causing them to die?
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Protecting Endangered Eagles

Protecting Endangered Eagles (1:11)

Watch this Reuters video to learn more about how conservationists are protecting endangered eagle species. Meet Shampalwe. She's a young Crowned Solitary Eagle, a bird of prey, native to South America. She's one of only 1,000 left in the world.

Life Science: Beluga Whales

Life Science: Beluga Whales (2:36)

Since beluga whales settled into the mouth of the St. Lawrence River some 10,000 years ago, their population has drastically declined. What is happening to the St. Lawrence belugas? What is causing them to die?

Natural Focus: Introducing the Sturgeon

Natural Focus: Introducing the Sturgeon (1:24)

Watch as a crew of biologists studies shortnose sturgeon on the Connecticut River. These amazing fish grow up to four feet in length, and live as long as thirty-five years.

Endangered Mammals in Europe

Endangered Mammals in Europe (1:31)

Watch this video about endangered mammals in Europe on HowStuffWorks. According to a report that assesses all mammals in Europe, the Balkans (particularly Bulgaria and Romania) are the most affected by declining land mammal populations; loss of... More »

Galapagos in Danger from Tourists, Poachers

Galapagos in Danger from Tourists, Poachers (1:06)

Watch this video about the environmental risks facing the Galapagos Islands. Ecuador's President Rafael Correa has signed an emergency decree that could temporarily suspend tourism permits and limit residents to prevent further environmental harm.... More »

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Mutual of Omaha's Wild Kingdom: Moving Elephants

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Natural Focus: Researching the Sturgeon

Natural Focus: Researching the Sturgeon (2:59)

A wet lab enables scientists to study the early life stages of the biologically unique and endangered shortnose sturgeon.

Natural Focus: Researching the Sturgeon in the Wild

Natural Focus: Researching the Sturgeon in the Wild (2:31)

The Endangered Species Act of 1973 provides some protection for the shortnose sturgeon, a bottom-feeder that preys other freshwater creatures.

Natural Focus: Introducing the Sturgeon

Natural Focus: Introducing the Sturgeon (1:24)

Watch as a crew of biologists studies shortnose sturgeon on the Connecticut River. These amazing fish grow up to four feet in length, and live as long as thirty-five years.

Life Science: Chemical Contamination of Beluga Whales

Life Science: Chemical Contamination of Beluga Whales (5:10)

Scientists suspect the belugas of the St. Lawrence River are dying from chemical contamination. These chemicals come from sources such as insecticides and toxins that have been discharged into the water.

Life Science: Beluga Whales

Life Science: Beluga Whales (2:36)

Since beluga whales settled into the mouth of the St. Lawrence River some 10,000 years ago, their population has drastically declined. What is happening to the St. Lawrence belugas? What is causing them to die?