Oh, since we're on topic about snakes here. . . .
While I was doing some library research on genetic sequencing that has been done for certain vital enzymes, stuff vital to many life forms which has been used in some cases to construct "evolutionary trees" with estimates of time lapsed since various branches diverged, I found not all proteins agree on the "tree".
For example, while few would be surprized at evidence showing practically no difference between humans and pigs (insulin), most of us would cringe at sharing the exact same protein(infering no lapsed time since divergence, or arguably no divergence) between Humans and either pit vipers and yeast.
So, I can stand on the technicalities of Science to prove that at least some of us are no different from "snakes in the grass" or "opportunistic parasites".

While I was doing some library research on genetic sequencing that has been done for certain vital enzymes, stuff vital to many life forms which has been used in some cases to construct "evolutionary trees" with estimates of time lapsed since various branches diverged, I found not all proteins agree on the "tree".
For example, while few would be surprized at evidence showing practically no difference between humans and pigs (insulin), most of us would cringe at sharing the exact same protein(infering no lapsed time since divergence, or arguably no divergence) between Humans and either pit vipers and yeast.
So, I can stand on the technicalities of Science to prove that at least some of us are no different from "snakes in the grass" or "opportunistic parasites".
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