J.M. Guayasamin et al.

‘Glass Frog’ Species Visibly Displays Its Beating Red Heart

The transparent skin on the underside of a new species of frog discovered in Ecuador fully exposes its wee little, dark-red heart.

Published On 06/02/2017
3:00 PM EDT
A juvenile H. yaku, native to the Amazonian lowlands of Ecuador. | J.M. Guayasamin et al.