Why does the *Thelotornis* genus lack the bulk seen in similarly sized, non-venomous species?

Answer

They are agile hunters relying on stalking rather than crushing power

The lack of mass is directly tied to their lifestyle as agile hunters that stalk prey in the branches, unlike ambush predators relying on sheer crushing power.

Why does the *Thelotornis* genus lack the bulk seen in similarly sized, non-venomous species?
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