Caturday felid: the King Cheetah

by Greg Mayer

Of interest to both ecological geneticists studying vertebrate polymorphisms and cryptozoologists is the king cheetah.

King Cheetah, by Jurvetson. Source http://www.flickr.com/photos/jurvetson/12020752/

The king cheetah, known only from southern Africa, is a striking pattern variation of the common cheetah (Acinonyx jubatus). Instead of being spotted, the dark markings of the king cheetah coalesce into stripes and vermiculations, especially along the dorsal midline. King cheetahs are to common cheetahs as blotched tabbies are to spotted tabbies, not just in the similarity of the patterns, but in their genetic relationship: the king pattern is a variation within populations of the same species, and both patterns can occur in the same litter.

In 1927, R.I. Pocock of the British Museum named the king cheetah as a new species, Acinonyx rex, the holotype being a specimen at the Queen Victoria Memorial Library and Museum in Rhodesia (now Zimbabwe). In 1932 the zoologist Angel Cabrera suggested that the king cheetah was merely a coat pattern variant of the common cheetah. For many decades after that the question of the status of the king cheetah was unresolved, as few specimens were known, and genetic experiments on cheetahs not possible. Cryptozoologists became interested in the king cheetah as a ‘semi-cryptid’– a not quite undiscovered species of large mammal, but at least a mysterious one.

In the 1970s more king cheetahs turned up, and methods of captive breeding of cheetahs, developed for conservation purposes, had advanced to the point where it was possible to investigate the question. In 1986, R.J. van Arde and Ann van Dyk of Pretoria University and the National Zoo in Pretoria, South Africa, showed that the king coat pattern was due to a recessive mutation at a single autosomal locus, thus vindicating Cabrera’s hypothesis from 50 years earlier. King cheetahs are now found in several animal parks in South Africa, and can be easily seen and photographed.

The story of the king cheetah shows that even when a new species is described and named according to the best practices, including insuring a publicly available holotype, it doesn’t guarantee that the species so named is new. It might be a new species, but it might also be a geographic or within-population variation of a known species (the latter in the case of the king cheetah), or in some cases nothing new at all (as when the describer is unaware that a description had been published previously).

9 Comments

  1. theshortearedowl
    Posted March 27, 2010 at 8:51 am | Permalink

    Whoza good kitteh den?

    • Janet Holmes
      Posted March 27, 2010 at 9:16 pm | Permalink

      Youza a good kitteh, yes you is!

  2. Friend of Icelos
    Posted March 27, 2010 at 9:40 am | Permalink

    You’ve got a typo there: “the king cheetah was merely a coat pattern variant of the king cheetah.”

    • whyevolutionistrue
      Posted March 27, 2010 at 12:40 pm | Permalink

      Thanks– fixed now!

      GCM

  3. JD
    Posted March 27, 2010 at 9:51 am | Permalink

    Does this explain the phenomenon of people putting racing stripes on fast cars? It seems now that maybe nature intends fast things to have racing stripes. =P

    Cool pictures

  4. JTrentadue
    Posted March 27, 2010 at 11:55 pm | Permalink

    Spots you say? I always thought those were speed holes…

  5. Posted March 28, 2010 at 2:27 am | Permalink

    Beautiful pussycats!

  6. Michelle B
    Posted March 28, 2010 at 3:28 am | Permalink

    Gorgeous animals.

  7. Shelldigger
    Posted March 28, 2010 at 6:47 am | Permalink

    Clearly this cat evolved these stripes to look like it had already been run over by evil cat haters. Thus avoiding these guys who will clean out ditches to run them over.

    I have in my years encountered a few who hated cats so much they really would go out of their way to run one down. Never understood why anyone could actually hate cats that much. Hell Im allergic to cats and have two!


Follow

Get every new post delivered to your Inbox.

Join 30,247 other followers

%d bloggers like this: