Do you think that, say, 100 million years ago (when there were mammals and plants pretty similar to what we know now on Earth, but no humans)
ETA: [goes to read http://en.wikipedia.org/wiki/Timeline_of_evolutionary_history_of_life#Cenozoic_Era] Wow, apparently there were no butterflies or grass 100 Myr ago. I would have never guessed they were that recent.
Grass is recent? That I didn’t know. Butterflies I would expect to be fairly recent since they are so vulnerable to evolving themselves to extinction.
ETA: [goes to read http://en.wikipedia.org/wiki/Timeline_of_evolutionary_history_of_life#Cenozoic_Era] Wow, apparently there were no butterflies or grass 100 Myr ago. I would have never guessed they were that recent.
Grass is recent? That I didn’t know. Butterflies I would expect to be fairly recent since they are so vulnerable to evolving themselves to extinction.