We do it all the time.
We generally spend the day scouting around and looking for fresh sign or anything out of the ordinary. At night we try to check out the areas that we found interesting during the day. We vary our approach…spending part of the time stationary with the rest of the time moving around. We vary our methods of illumination. We will switch between white and red lights, while sometimes just using night vision to move.
Other people may have a different experience , but we seem to get out best results when we are on the move at night.
As far as precautions go… that’s a long list. Redundant GPS units, backup paper maps, PLBs, first aid kit, backup batteries, firearms, always letting someone know where you will be… Everything from a chainsaw and tow straps to remove downed trees that may block you in to having the ability to filter water, extra food, and the ability to handle flat tires or jump dead batteries.
6. Gorillas are very intelligent, and they share with us a full range of emotions: love, hate, fear, grief, joy, greed, generosity, pride, shame, empathy, and jealousy. They laugh when they are tickled and cry when they are sad or hurt. Gorillas cry with sounds, not tears.
http://www.koko.org/kidsclub/learn/10facts.html