Although they are looked down upon by most of the herp community “purists”, some people have successfully created “hybrids” *in captivity*.
That is to say, the chosen genus are given the opportunity to breed with only a ~different~ genus in the same family.
[ie, Colubridae, Boidae, etc]
In the wild, this would be *extremely* unlikely.
In fact, snake keepers are careful to not house different species together because cannibalism is the usual result.
Let’s not get on the myth of anacondas and pythons breeding together in the wild. UGH.
Yes, different species and some of the same species can and will cannibalize. Never house king snakes together unless you want to lose one of them.
I’m one of the purists. I love doing morphs but not hybrids. We’re breeding tarahumara boas in the next year or two. I’m sure someone will say that they’re dangerous and evil as well. Sigh.
I guess the biggest problem is irresponsible pet owners.
I have seen several programs on TV (Nat Geo, Animal Planet) that say this has become a major problem in South Florida where a number of pet owners have released giant African Rock Pythons and Burmese Pythons into the wild (often the Everglades) because the snakes got too large for them to care for.
A released python was even found with an alligator inside of it.
As is usually the case, it is humans who have proven to be the real problem, not understanding how big some of these snakes can get and how expensive and involved it is to properly care and feed them, to insure that they have big and safe enclosures. Snakes are notorious escape artists as I’m sure you know.