Scientists Discover Hundreds of Frog Species ���Glow���

If you had the eyes of a frog and were outdoors at twilight, you might notice a faint glow here and there. And that green or orange glow would be . . . frogs! Yes, scientists have discovered that at least 151 different frog species in South America ���fluoresce under the blue hues of twilight.���

The more researchers check for biofluorescence in various organisms, the more they find it (including in my favorite Aussie animal, the platypus!). Now why might these frogs glow? Well, the researchers s...