Why don't wolves have dewclaws on their back paws?

Wolves do not have dewclaws on their back paws primarily due to evolutionary adaptations that enhance their hunting and mobility. Dewclaws can hinder movement and agility, which are crucial for a predator's survival. By lacking these extra digits on their hind limbs, wolves can run more efficiently and maintain better traction while navigating various terrains. This anatomical feature reflects their specialized lifestyle as hunters in the wild.