Here's why:
* High Activity: Even though they live in frigid environments, Arctic wolves can generate a lot of heat during activities like hunting or chasing prey. This can raise their body temperature significantly.
* Summer Months: Though not as extreme as in warmer climates, summers in the Arctic can still see temperatures above freezing, and wolves may need to find shade or cool water to avoid overheating.
* Sun Exposure: Even on cold days, the sun can still cause overheating, especially for wolves with darker fur.
* High Humidity: While rare, high humidity can trap heat and make it harder for wolves to cool down.
How Arctic wolves cool off:
* Panting: Like dogs, wolves can pant to release heat.
* Seeking Shade: Finding shelter under rocks or in trees provides temporary relief from the sun's rays.
* Cooling Water: Swimming or drinking cool water can help lower body temperature.
It's important to note that Arctic wolves have excellent adaptations for cold climates, including thick fur, a layer of subcutaneous fat, and a circulatory system designed to conserve heat. However, they still need to regulate their body temperature, and overheating can be just as dangerous for them as freezing.