A philosophical ? for you. If humanity becomes extinct, do you think another species would evolve in our place? What lessons would the learn from us?

Personally I doubt they'd learn much from us. It would take several million years for them to evolve and I doubt there would be much left of us by then. Maybe some cave painting in the more stable geological areas as they seemed to have survived just as long as it is. And a fall-out bunker stashed in a Mt. somewhere. Some of those storage facilities located in old coal mines (like in PA). Anything under sand in the desert and perhaps at the bottom of the sea or in an ice flow. But I truly don't believe there will be much let of us for them to draw any kind of conclusion about us. We’d be to them what the dinosaurs are to us.

For those of you interested the Discovery Channel did a mini-series about this a few years ago. I showed what may happen if humanity no longer inhabited Earth (the premise was that all humanity had left Earth and sent back satellites to monitor how it changer). It showed how different spices may evolve over time through all sorts of claimed changes (ice ages and such). It was really cool; sadly I forget the name of it. Spoilers: Cockroaches still going strong and the octopus inherits the Earth.