Oh they are naked but not afraid.. Maybe its not as scripted as other shows, more like improv but definitely not what it appears. You can search and find all kinds of testimonies from former contestants saying that the production team is alot more involved than we are led to believe watching at home. Just checked right now and there is too many examples to single out and post here.
But start here:
Left naked in the wilderness with nothing but a tool and a map, contestants on "Naked and Afraid" seemingly have it tough. But how much of it is actually real?
www.grunge.com
"Naked and Afraid" is one reality TV series that appears to be more authentic than most — but is the Discovery Channel show real or fake?
www.nickiswift.com