Arnie Negrete experiments with a Coke and Mentos elephant toothpaste reaction.

Discover 6 awesome toothpaste life hacks that will transform the way you use this everyday household item. From cleaning tips to unexpected uses, learn how toothpaste can solve common problems and ...

Scientists knew almost nothing about how ebony trees, used for guitars and piano keys, grow. A new study reveals the secret ingredient — elephants.