Why might a pygmy rattlesnake bite sometimes result in less severe systemic effects?

Answer

Their fangs are shorter, potentially preventing full envenomation.

Because their fangs are shorter than those of larger snakes, they might not always achieve full envenomation if the strike is deflected by clothing or folds in the skin.

Why might a pygmy rattlesnake bite sometimes result in less severe systemic effects?
reptileviperRattlesnake