With all due respect, and not intending to answer for Wolfgang...



What you are asking him in this post and your previous one is very vague, and tantamount to educating you from the ground up with respect to viperid and crotalid snakes. Most of this information you could easily find yourself with a few internet searches.



Some of the 'species" you ask about in your previous post are not even valid species..for instance:



Vipera lachesis

Vipera and Lachesis are two different genera.





Vipera daboia

Daboia is a genus under which some former members of the genus Vipera have recently been placed. For example Daboia russelli russelli was formerly known as Vipera russelli russelli. Some members remain under Vipera



The difference between Pit Vipers and True Vipers...for a very simplistic answer, it is the presence or absence of heat-sensitive loreal pits. There are other differences too, but once again the question is entirely too vague and general to be adequately answered.



The question on differences in behavior between all of the different species of Vipera is probably the most vague and most impossible to answer in the form in which it was asked.



I would suggest doing some of your own research, then refining your questions.

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