>Mice, argues Darwin, are among the principal enemies of bumblebees. They eat their larvae and destroy their nests. On the other hand, as everyone knows, mice a

>Mice, argues Darwin, are among the principal enemies of bumblebees. They eat their larvae and destroy their nests. On the other hand, as everyone knows, mice are the favorite prey of cats. One consequence of this is that, in proximity to those villages with the most cats, one finds fewer mice and more bumblebees. the same with birds - rats are able to eat eggs, so having a bunch of cats on a farm/village naturally results in having a booming bird population.