Add wyverns as a playable and naturally-occuring intelligent wilderness creatures. They are flying, egg-laying mammals slightly larger than humans that spawn in any savage surface biome. While they only have wings with no other forelimbs, they have hand/finger-like appendages on their wings that allows them to perform grasping actions.

Societally they behave like animal people, although they have some complex personality (and physical) characteristics usually only given to the main races such as dwarves. Interestingly, despite being intelligent they can be tamed, trained, and act as mounts (which may act strange and buggy when attempted, q.v. gremlins).

There are also some fun adventurer mode interactions available: friendly biting and licking self/friend clean.

They have a full sprite sheet including statues, undead, list icons, etc. However if anyone is willing to make a better sprite sheet than I am capable of making then I'll happily accept it though…

Tested on all game modes on stable v50.14 and on Adventurer Mode v51.01 beta 25.

See objects/creature_wyvern.txt in the mod contents to view full details on their creature definition. Or view the mod source online. I've tried to comment the raws comprehensively.

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