summarize: Regardless of whether Wookiees have hair or fur, a hot environment would be the main driver towards hairlessness. The abundance of forests and lack of deserts implies that, unlike the African savannah, Kashyyyk is not a hot and dry place. This would make sweating less efficient. If this is combined with a relatively cool climate most of the time, then insulating fur may have been more advantageous to the Wookiees than losing it to improve sweating. They may also have smaller brains, which could lessen the need for improved heat loss via bare-skinned sweating. However, they would
...more
