Fluoride supplements have been used in the United States for decades and have proven to be safe and effective for decreasing cavities.

Not all plants can be stored in a seed bank. Cryopreservation offers an alternative, but critics question whether this form of conservation will work.

Oddly shaped deposits of tree resin point to massive waves that struck northern Japan roughly 115 million years ago and swept a forest into the sea.

The Teal Wand, an at-home HPV testing device that could replace a Pap smear, could broaden access to cervical cancer screening.

Researchers found the gene and genetic variation behind orange fur in most domestic cats, solving a decades-long mystery.

A faint yet visible Martian aurora is the first instance of the phenomenon spotted from another planet's surface.