![]() ![]() While there are more dog-owning households (38 percent) than cat- owning households (34 percent), there are actually more domestic cats than dogs because cat owners own more of them. If the approximately 220 million domestic cats in the world all bit the dust, seabird populations would likely fall worldwide, while the populations of non-cat predators that prey on rats would be expected to increase.Īnd let's not forget the emotional toll that a mass cat death would take on us humans: "In this country, cats are much loved by many. On that same island in New Zealand, for instance, ecologists observed that, as rat numbers increased in the absence of cats, the population of seabirds whose eggs rats preyed upon declined. And if the rodent population shot up, this would of course trigger a cascade of other ecological effects. ![]()
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