It's like realizing this childhood world wasn't that way just because you have changed from a child to an adult, but because the world has changed.
I'm starting to become worried over what my daughter might experience in that regard. Things that were normal for me or that she might encounter that will be gone instead. Like, will fireflies still be around for her as an adult? What about walking around with piles of snow higher than you everywhere? Will she ever see a natural unlit clear night sky? It's difficult to convey what that many stars looks like, or seeing the milky way stretched across it.
More to the point of the article, I remember freshwater bivalves walking upstream across stream beds. They aren't mussels, but still — I haven't seen any in the last several years where I used to.
If you're outside Canada (North America?) it can be difficult to get an ebook version; I can help with that... ;-)
(Note: with the author's agreement!)
My take, the baby-boomers consciously severed our ties to the past as their children we have now lost all connections to the natural world. We get what we deserve which is utter destruction of the climate and mental suffering and disease until the day we die.
This is just one of the myriad ways that we have impacted the world without realizing and just like software bugs, where there is one there are more. Even if we overcome global warming, there is this lingring sense that this century will be the last where nature has any resemblance to the pre-sapiens world.