Name _____________________________________ Period ____
From the top of the food chain down: Rewilding our world
http://ed.ted.com/lessons/from-the-top-of-the-food-chain-down-rewilding-our-world-georgemonbiot
1. Which American species is believed to have driven vast predators, like sabertooths and
giant lions, off their prey?
a. A giant bird known as the Argentine roc (Argentavis magnificens)
b. The short-faced bear
c. The giant ground sloth
d. The American cheetah
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2. The "keystone species" which has reshaped the ecology of much of the Yellowstone
National Park, creating habitats for many other animals, is:
a. The bald eagle
b. The bison
c. The otter
d. The wolf
3. The process by which predators drive ecological change throughout the natural system is
called:
a. Shifting Baseline Syndrome
b. Domino Theory
c. Trophic cascades
d. Nominative determinism
4. The mass restoration of the natural world is widely known as:
a. Regreening
b. Rewilding
c. Re-enchanting
d. Re-invigorating
5. Which aspects of human life would be enhanced by a mass restoration of the natural world
in places vacated by farming, and which would be impoverished?
6. If extinction is forever, to what extent can an ecosystem missing much of its megafauna
truly be restored?
7. How does research of the kind conducted in Yellowstone change our understanding of how
the natural world works?