Evolutionary advantage for recurve fang in dragons

In medieval times, news of dragons attacking the outskirts of the villages is flooding in. The King is losing patience. According to witnesses, these dragons can lift cows and occasionally elephants off the ground. Further inspection on the animals's carcasses revealed that the dragons bite their victims using a recurve fang before delivering a neurotoxin into the bloodstream.

("Recurve" means that the tip is curved outward while the rest of the fang curves inwards, forming an 'S' shape.)

However, experts are unsure how these recurve fangs work, because some animals with much thicker hides or fluffy fur could easily prove slippery for the fangs, preventing them from hooking their prey. Most experts do agree that the dragon must first deliver the venom to prevent the prey from struggling in its mouth - and that its talons are only used for separating the herds or destroying obstacles.

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Evolutionary advantage for recurve fang in dragons

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