Environmental Science
Protected Area Connectivity and Genetic Flow in Wide-Ranging Mammals
Quick fact
Many protected areas are too small to support a viable population of large carnivores; for example, Yellowstone National Park (about 9,000 km²) can only sustain a few dozen wolves, but genetic health requires hundreds to avoid inbreeding.
Why this is interesting
A national park can be a death trap for a wolf. If it's the only protected area around, the wolf's descendants may never leave, and the population will slowly become weaker. Why?