When I was a kid my family vacationed one summer in New Hampshire. On a road with no streetlights there was a small out of the way restaurant with one streetlight above it. We watched hundreds of insects swarming around it. I visited that same spot a few summers ago, and no more huge swarms of insects.
Humans impact the natural world in ways we don’t notice at first, and I suspect it’s causing a cascade of changes we are also oblivious to.