Fur

The subject is covered with thick, shaggy fur which can ward off cold.
Type: Minor positive.
Effect: This mutation causes the subject to be extremely hirsute, with a cost of fur befitting a woolly mammoth. This grants a +4 bonus on all saves against the effects of cold weather, and cold resistance 5. Unfortunately, it also inflicts a -2 penalty on saves against hot weather and increases water consumption in hot or very hot environments by 25% (multiply the total water required by 1.25).
Biotech: Graft.