5 Vanishing Frogs

Panamanian Golden Frog
Panamanian Golden Frog Alex Kerstitch/Getty Images

The Panamanian golden frog is named for its golden color, which is always interrupted by one or more black markings. While most frogs are known for their croaking and vocalizations, the Panamanian golden frog prefers semaphoring over vocalization; semaphoring is a hand-wave used to grab the attention of other frogs. Their preference for semaphoring is probably a natural adaptation to the noisiness of their environment.

The Panamanian golden frog is the national animal of Panama and is thought to bring good luck, which is why it is frequently pictured on Panamanian lottery tickets. Like many other frog species, the Panamanian golden frog population is on the verge of extinction, and the species is listed as critically endangered. Some experts believe the frog to be extinct in the wild.