Mechanism of heat tolerance is found in

Answer: Option B

Mechanism of heat tolerance is found in Buffalo.
Wallowing in animals is comfort behaviour during which an animal rolls about or lies in mud, water or snow.
Wallowing is often combined with other behaviours to fulfill its purpose; for example, buffalo will often blow dirt over themselves after wallowing to create a thicker "coating", and they will allow the mud to dry before rubbing themselves on a tree or rock to remove ectoparasites stuck in the mud. It helps in Thermoregulation.