Wait, what? A RAT caught and ate a BAT? And there's video! What does it portend?

Scientists were surprised to see their recording of swarming bats revealed a rat attack.

Scientists filmed bats to see how they communicate while swarming. They found a surprise: In urban settings, rats attack bats. What are the implications for bats ... and virus spread to humans?

(Image credit: Gloza-Rausch et al, Global Ecology and Conservation)