Before I request the BUR I wanted some feedback:
alternate_species is basically "character is normally drawn as X, while here they're drawn as Y", which isn't TWYS by definition.
You could argue that the same applies to furrification, humanized, humanoidized, ponification and dragonification because they already imply alternate_species, but I'm not sure about them.
Lore might also apply to the alternate_form family of tags, but I'm not sure here either.
Stupid example: well-known characters
Better example: random characters
post #2157356 -> post #2607644
post #2776307 -> post #2569389
post #1359822 -> post #2475597
post #1612344 -> post #2487293
Neil Armstrong? post #2716486 (furrification)