I'm sort of laughing at the concept that we feel it strange that cats don't want to kill rats because of the size of the rats rather than the conversation leaning towards what are we doing that have caused rats to become so large.

In middle eastern cities I rarely see rats. But I see a lot of free roaming cats.

In western cities I see rats but no cats.

I suppose we’ve made our choice.

Honestly American cities would be so awesome with lots of cats around. Who cares if they're strays, they're animals.

I'd love animals with jobs in cities. Like raccoons doing trash sorting, cats hunting rats, maybe some monkeys to add random mayhem, etc.

I see plenty of cats and rats around western cities.

The cats tear through the local bird population, rather than the rats

Rats in NYC are mostly because they haven't invented "having trash cans" technology yet.

I'm talking about bunnies, not adult rabbits, and this is Northeast U.S.

The Norwegian rat (a/k/a brown rat, of Black Death fame) grows up to 28 cm (11 in) long, and weighs 140 -- 500 g (4.9 -- 17.6 oz, just over a pound).

Some individuals might be the size of adult rabbits of smaller species, certainly of juveniles.