I recently finished Perdido Street Station, and one minor thing that bothered me is how many of the other races were either a humanoid version of earth life (cactus person, bird person) or a literal combination of a human and something (head of a bug, body of a person). That just seems so fantastically unlikely that I wonder if any of the other books in that setting explain it. Like, is it a future earth and the races are results of generic modification in some prior era?
I liked the book pretty well, through it’s not exactly uplifting. Thought provoking though.
Oooooooh, I have one:
https://www.grrlpowercomic.com/archives/comic/grrl-power-759-its-evolutionary-my-dear-washington-post/
It’s like a 5 page spread for the whole spiel but this is the most relevant page.
The one thing i will add it that the eye thing primarily is super true and backed up by science as 20% of our brain is dedicated to visual functions and adding a third would make our heads very very hard to handle for almost 0 benefits.