I guess Japans geography allows for a lot more undeveloped regions where wild animal can thrive and live without bothering anyone. Here we mostly have flat land and due to the heavy settling for almost 2000 years there’s little untouched nature left.
I can recommend the Last Week Tonight Episode about just this topic. At least in the US, there’s basically no difference
https://www.youtube.com/watch?v=Tn7egDQ9lPg