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Color-Coded for Your Convenience is your last one...
Ignorance killed the cat. Curiosity was framed.1. Alien Animals? 4. Color-Coded for Your Convenience 5. Artist Disillusionment?
MAX POWER KILL JEEEEEEEEWWWWWBut Alien Animals is about Earth animals being aliens that we just don't know about, not "the author was unimaginative or wanted to make a "mythology planet" so they put Earth critters on Mars."
First one sounds a bit like Call a Rabbit a "Smeerp" minus the renaming aspect.
I'm sure there's are tropes for these, but I can't recall them:
Alien world is established. Somehow all the aliens are clearly just funny-colored or slightly altered versions of the creatures from human mythology. For example, Dragonriders of Pern, where tiny dragons are just random native creatures.
Cases of technological reversion, such as in Battlestar Galactica (super-technological Adam and Eve society eventually gives birth to really backwards civilization that has to re-learn everything) and Pern (space travel and super-genetic-engineering tech decays to medieval civilization).
Fantastical creature appears in our world and the plot attempts to explain it away in pure science (such as in Reign of Fire).
Blue and "cool colors" are good, red and "warm" colors are bad. Averted in Avatar, where Azula is the only blue fire user, but played up in Tron, where all good things are white or blue and all bad things are orange, red, and yellow. Red eyes are bad; blue eyes are good. Etc. (I know there's an eye trope, but this is for general color trends.)
Creators getting angry at the mere existence of fan work (the author of Brokeback Mountain, Anne Mc Caffrey, and more), not at the bad fan work in particular
Edited by Alcor