Posted by:
markg
at Fri May 4 12:49:26 2012 [ Email Message ] [ Show All Posts by markg ]
Definitely they resemble kings, especially Coronella.
I thought that present day kings may have come from a common answer in Central Mexico. Certainly likely for the montane kings and milksnakes. Maybe the Central Mexico ancestor came from Asia?
I have a new subject to google..
What is interesting is that the Bushmaster from Central America is considered closely related to pit viper ancestors from Asia, as the Bushmaster is rather primitive compared to North American pit vipers. The rattlesnakes are the newer and more advanced pits. So Asian gene flow made it to Central America at some point.
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