My equivalent of this is insects. My family and I made a lot of trips with our car in the 90th. The front of the car was full of squashed insects when we arrived. There was a constant knocking on the windshield. The amount of insects that I find on my car today is far less. I think it's about 10-20% of what it was in the 90th. I'm worried.

Me too- I remember catching frogs in the water by my parents house and listening to the peepers at night. Now, the frogs are gone. I don't know where they went..