Which of the following statements best characterize the patchy forest hypothesis?
- Climate change that occurred millions of years ago led to contraction of forest in favor of grasslands, requiring greater distances to be travelled between food sources.
- Bipedalism is more efficient for medium- and longer-distance travel than is quadrupedalism.
- Quadrupedal apes can travel efficiently between distant forest patches in search for food.
- When forests became patchy, hominins stopped eating foods from trees and switched to hunting animals.