When it comes to brushing those pearly whites, we've likely all been taught to brush our teeth at least twice ... formed overnight and boosting saliva production. "While you sleep, plaque-causing ...

Humans do not have tails, but do we have “what it takes” for a tail? Hens don’t have teeth, but they have the genes for it. With atavism, it is as if our genomes serve as archives of our ...