News Life

Many frogs glow in blue light, and it may be a secret, eerie language

Twilight conditions may let the frogs' skin emit colors that can be easily seen by other frogs

A photo of a small green Sarayacu tree frog sitting on a green background.

The Sarayacu treefrog (Dendropsophus parviceps) is one of 151 frog species recently determined to fluoresce under the blue hues of twilight.

Santiago Ron

By Jake Buehler

- More than 2 years ago

In the dim twilight hours, many frogs may be capable of emitting a faint green or orange glow.