This is a submission for the Anatomically Correct Series

For 30 years T Yoshi Munchakoopas has been been helping Mario out in many adventures even reuniting him with his brother when they were infants.
enter image description here

The question I want to ask is what would an anatomically correct Yoshi be like? Based on the available data, though, it is clear that Yoshi species:

  • come in various colors
  • Are large enough to be ridden, and strong enough to support the weight of a fat Italian plumber
  • are 5.5 ft tall
  • have a long chameleon like tongue
  • exist in large herds
  • can quickly lay egg like objects which they can use as projectiles
  • can temporally propel themselves in the air by quick moving their legs
  • are fairly intelligent
  • can store juices which they can later shoot out

so what species would Yoshi have evolved from, and what evolutionary pressures would lead to such a species?

Bonus Points if they have a tendency to commit tax fraud

  • 2
    $\begingroup$ Why would a Yoshi commit tax fraud? Did this happen? $\endgroup$
    – Incognito
    Feb 6, 2020 at 3:47
  • 3
    $\begingroup$ @Incognito Yoshi Commits Tax Fraud was the greatest Wii game never made. $\endgroup$ Feb 6, 2020 at 9:24
  • 2
    $\begingroup$ @Incognito that's a meme that was born from an obscure dialogue in a game being blown out of proportions (in other words, business as usual in the internets). See nintendoeverything.com/… $\endgroup$ Apr 1, 2020 at 15:43
  • 4
    $\begingroup$ I’m voting to close this question because this is a question about a commercial third party intellectual property. WB.SE isn't here to satisfy idle curiosity about someone else's work! $\endgroup$
    – elemtilas
    Apr 18, 2020 at 20:28
  • 1
    $\begingroup$ Please come and participate in the ACS discussion! Since a lot of your questions are being questioned, I think your input will be most valuable! $\endgroup$
    – elemtilas
    Apr 18, 2020 at 20:35

2 Answers 2


Yoshi’s could actually be highly evolved snails that have acquired reptile-like traits through convergent evolution.

The little red thing on their back could have once been a snail shell, but as the animal evolved, it became vestigial, and is now only used as a saddle.

But the most obvious evidence of their ancestry would be their method of reproduction. Despite being called a male, Yoshi lays eggs, which is something normally only female animals do. This could mean that like normal mollusks, all Yoshi’s are hermaphrodities, possessing both male and female characteristics.

As for why a snail would evolve into a creature like Yoshi, it could be because of the hostile conditions of the Mushroom Kingdom, that would require the snails to flee from more dangerous predators, forcing them to develop legs for running.


If I were re-creating Yoshi, I would have him evolve from chickens. Yoshi seems very dinosaur-like with his lower hip structure, as opposed to side-leg gait of a reptile.

Of course, birds are dinosaurs: they lay eggs, they "herd," someone tried to ride an ostrich at least once, and they are fairly intelligent.

They don't have the reptilian/amphibian tongue or the ability to Jesus-Lizard through the air, and of course do not spit (I looked up the Dilophosaurus from Jurassic Park, but the spitting was pure fiction, the "only serious departure from scientific veracity" in the book).

If I were re-creating Yoshi, I would have him evolve from chickens who had to grow bigger, returning in form to their Dino ancestors. They lose feathers in the newly-warmed earth while keeping their relative stockiness, toughness, and massive egg-laying ability.

  • $\begingroup$ "The snout" what does that even mean? $\endgroup$
    – icewar1908
    Apr 1, 2020 at 17:49

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