The Muppets are a veritable cornucopia of different species. Some are obviously Muppet versions of humans, like [Statler and Waldorf][1]... [![enter image description here][2]][2] ... although it appears there's a distinction to be made even between a Muppet version of a human and an actual human, judging by the song _[Man or Muppet][3]_ from _[The Muppets][4]_ (2011). [https://www.youtube.com/watch?v=cRTjksM3YAs][5] As for other Muppets, some are apparently meant to belong to other subsets of the animal kingdom, like [Kermit the Frog][6], who's been clearly identified as a frog at various times, like in _[The Muppet Movie][7]_ (1979) (credit to PlutoThePlanet for this one), or a more recent interview with Ellen DeGeneres. [https://www.youtube.com/watch?v=2fwq7YY2Suc][8] [https://www.youtube.com/watch?v=1_AUn5poOmA][9] Some are clearly identified as fruit or vegetables: [https://www.youtube.com/watch?v=OuB4Jfw5n_8][10] And some are altogether alien, like [Gonzo][11], whose extraterrestrial origins were revealed in _[Muppets from Space][12]_. [https://www.youtube.com/watch?v=Lx2jYCltuQo][13] [1]: https://en.wikipedia.org/wiki/Statler_and_Waldorf [2]: https://i.sstatic.net/0ZVoU.jpg [3]: https://en.wikipedia.org/wiki/Man_or_Muppet [4]: https://en.wikipedia.org/wiki/The_Muppets_(film) [5]: https://www.youtube.com/watch?v=cRTjksM3YAs [6]: https://en.wikipedia.org/wiki/Kermit_the_Frog [7]: https://en.wikipedia.org/wiki/The_Muppet_Movie [8]: https://www.youtube.com/watch?v=2fwq7YY2Suc [9]: https://www.youtube.com/watch?v=1_AUn5poOmA [10]: https://www.youtube.com/watch?v=OuB4Jfw5n_8 [11]: https://en.wikipedia.org/wiki/Gonzo_(Muppet) [12]: https://en.wikipedia.org/wiki/Muppets_from_Space [13]: https://www.youtube.com/watch?v=Lx2jYCltuQo