TED-ED: From the top of the food chain down: Rewilding our world - George Monbiot

The video explores the history and extinction of megafauna, the potential for resurrecting extinct species using genetic material, and the concept of rewilding to restore ecosystems. It highlights the impact of trophic cascades, using the example of wolves in Yellowstone, and discusses global rewilding movements aimed at ecological restoration. The video emphasizes the importance of rewilding with local consent and the hope it brings for reversing ecological damage.

What were some of the large animals, known as megafauna, that lived in the Americas?

• Elephants and tigers

• Giant pandas and kangaroos

• Ground sloths and saber-toothed cats

• Woolly mammoths and dodos

What is one method scientists are exploring to bring back extinct species?

• Artificial intelligence

• Genetic cloning

• Time travel

• Space exploration

How did the reintroduction of wolves affect the ecosystem in Yellowstone National Park?

• It led to a decrease in vegetation

• It caused a decline in bird populations

• It resulted in a trophic cascade

• It increased the number of coyotes

What is a trophic cascade?

• A type of waterfall in a forest

• A natural disaster affecting ecosystems

• A change at the top of the food chain affecting all levels

• A change at the bottom of the food chain

What is the main goal of rewilding?

• To create ideal ecosystems

• To reintroduce species and let nature recover

• To build urban areas

• To increase agricultural land

Why is community consent important in rewilding projects?

• To increase tourism

• To avoid displacing people from their land

• To prevent legal issues

• To ensure the projects are profitable

What does rewilding reintroduce alongside missing animals and plants?

• Pollution

• Destruction

• Hope

• Fear