Nature's Resilience and Species Recovery

The video discusses the resilience of nature and how species can rebound when given proper habitat protection. It highlights examples of species that have recovered due to conservation efforts, such as the northern elephant seal, sea otters, humpback whales, bald eagles, and gray wolves. These examples demonstrate the effectiveness of protection measures like the Endangered Species Act in facilitating the recovery of species populations over time.

What is a key factor that allows nature to demonstrate its resilience?

• Pollution

• Increased human activity

• Habitat protection

• Climate change

Which legislation is mentioned as having a significant impact on species protection?

• National Environmental Policy Act

• Marine Mammal Protection Act

• Endangered Species Act

• Clean Air Act

How many northern elephant seals were estimated to remain at their lowest point?

• 50

• 200

• 100

• 20

What was a major threat to sea otters that led to their decline?

• Fur trade

• Climate change

• Overfishing

• Oil spills

By how much did the northern Pacific humpback whale population increase over 40 years?

• 5-fold

• 10-fold

• 12-fold

• 15-fold

What chemical was responsible for the decline of the bald eagle population?

• Mercury

• Lead

• PCB

• DDT

Approximately how many breeding pairs of bald eagles were there in the late 60s?

• 487

• 2,000

• 1,000

• 5,000

What was the status of the gray wolf population in Yellowstone before reintroduction?

• 200

• 0

• 50

• 100

What is a key outcome of reintroducing species like the gray wolf to their natural habitats?

• Increased tourism

• Higher pollution levels

• Decreased biodiversity

• Population rebound

What is the main theme of the video tutorial?

• The impact of climate change on species

• The importance of urban development

• The resilience of nature and species recovery

• The role of human activity in species extinction