Jul 9, 2024
Overcrowded Worlds: Lessons from Calhoun’s Behavioral Sink Study
Imagine a world where all your needs are met. You have ample food, comfortable shelter, and no predators lurking around. This was the reality for the inhabitants of “Universe 25,” a utopia created by American ethologist John B. Calhoun in the 1960s. In this seemingly perfect setup, rats had everything they needed for a thriving existence. Yet, within this paradise, something went terribly wrong.…