system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If species such as dinosaurs were around longer then humans (over 100 million years), why do they not evolve into more intellectual creatures?
gpt
1) Dinosaurs are not a species. But a group of several different orders. (much higher up on the taxonomic tree)

2) Extinction is the natural result for most species on this planet.

3) Intelligence is not a inevitable route for all species.  It's just one of many possible routes for a species to take.