Luzon fanged frog (Limnonectes macrocephalus) Publicado el octubre 27, 2011 a 600 × 428 en Hoppy Halloween from the Panama Amphibian Rescue and Conservation Project! A number of frog species, like the Luzon fanged frog here, have bony jaw protrusions that resemble fangs. (Image curtesy of Rafe M. Brown)