Lips are made of very sensitive tissue and, because we use our mouths constantly, are over-exposed to harsh environmental factors.
Animals and plants take part in an evolutionary dance of chemical warfare.
Saliva doesn't just help with digestion; it also aids your body's fight against disease and infection.
Did you know that there could be more bacteria living in your mouth than there are people on earth?
Got tooth decay? You are not alone.
Is there such a thing as poisonous rats? (We think it would make a great horror movie!)
Why do we prefer "Mom's cooking" over another persons?
It would only take a single oversized meal to kill or cause brain injury to a squid.
Drinking pop all day may not be a healthy habit, but can soda actually rot your teeth?
Why do most people like Mom’s cooking? Although family attachments can account for part of our appreciation, the fact that Mom’s (or Dad’s) cooking tastes good to us also has some basis in genetics. Learn more on this Moment of Science.