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Issues with the Python Industry: A Summary

Dr Laura Coughran • May 10, 2022

After returning to reptile keeping after a 3-4 year hiatus, I have found many issues with the python industry.


The Morelia portion of the reptile hobby has been disfigured. Jaguars and Zebras, which originated outside of Australia, have somehow made it back and have been bred into what seems like virtually everything. It is very hard to find trustworthy pure snakes, let alone locality pure ones that I treasured. In this article, I will expand on my issues with the python industry currently.

1. Interspecies breeding


Yes, people cross breed dogs and cats, so crossing pythons is ok, yeah?


In my opinion, no, not to the point people have taken it.


Domesticated dogs for example are Canis lupus familiaris. The genus name being Canis- that is essentially their 'family.' Lupus familiaris is the actual species level. 


Now, with 'carpet pythons' their genus is Morelia, and the different types of carpets are actually different species within the Pythonidae family: M. spilota cheynei, the jungle carpet; M. spilota mcdowelli, the common coastal carpet python (the one most people just call carpet pythons); M. bredli, the Bredli carpet. The list goes on. 


Now, people have created inter-species hybrids to get certain genes and are breeding purely for cosmetics, and in the case of Jaguar carpet morphs, to the detriment to the animals- I’ll elaborate more on this in the next point.


With hybrids in the ‘snake world,’ they aren't 'cross breeds' like dogs - they aren't the same breed- they are different species!


They have zero conservation value and in most of the crosses would never naturally meet in the wild.


But because humans interfere with natural selection, this inter species crossing, creating hybrid animals (not simply a morph as they call them) again to me is unethical.


2. Misleading Advertising


My next concern is that this interspecies breeding has a high chance of misleading new and old keepers alike into believing they have one animal, when it is a hybrid.


E.g. animals advertised as albino Bredli or Murray Darlings- no albino gene has been identified in pure Bredli or Murray Darlings- they have been cross bred with Albino Darwin carpet pythons and line bred to produce these 'albino Bredli/Murray Darlings."


If not advertised correctly, or via a Chinese whispers like pathway, these animals may be bred, and their offspring sold as 'pure Bredli' etc. Then bred back to legit pure animals. Creating havoc and uncertainty within this muddled mess of Morelia!!


And if these snakes escape or are released, and interbreed with wild native localities... it is just as bad as having imported species such as corn snakes released into the wild in Australia.

...if these snakes escape or are released... it is just as bad as having imported species such as corn snakes released into the wild in Australia.

3. Breeding for appearances over health 


One big example of this can be seen in Jaguar carpets- every single one, has a defect that causes neurological signs.


Some may be so mild you don't notice.


But some, are so bad they can’t stay right way up, they roll around, can't feed and are euthanised or starve to death.


This goes against everything I believe in as an animal lover, and veterinarian. We should not be promoting the reproduction of genetically unfit animals to the detriment of their wellbeing, purely for the sake of our own cosmetic preferences. 


I admit. I adore the look of a stunning reduced pattern jungle jaguar carpet python- which is a cross between a jungle and a coastal, by the way- an interspecies hybrid- but I would never own them because in my opinion it is unethical. 


Other examples of breeding to the detriment of the animals health are certain albino lines that are blind, and others where there are very high mortality rates in the offspring, so few make it to adulthood. 


4. Illegal Practices


Cross-breeding native species is actually illegal! As I've stated above, cross breeding has zero conservation value, and poses significant risks if the animals were to escape and interbreed with wild native localities.


Various State Acts, Regulations and Codes of Practice that govern the licenced native reptile breeder are clear about hybridisation not being a lawful activity.


Under section 92(1) of the Nature Conservation Act 1992, it is an offence for a person to knowingly breed a hybrid or mutation of a protected animal other than under a regulation or an exemption under a regulation.


The Code of Practice: Captive Reptile and Amphibian Husbandry states  one of the aims of herpetology is "maintenance of the genetic integrity through sound captive breeding management"


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