Great Peeping Frog

Fascinating facts about the Great Peeping Frog

• The great peeping frog lives on the black lava fields of Xitle volcano, a landscape most visitors never explore. This amphibian has carved out its home among the sparse shrubland that clings to the hardened rock.
• Urban expansion threatens the frog’s habitat, and the species is now confined to the protected Pedregal Reserve.
• Scientists have only ever recorded the great peeping frog near its type locality, meaning all confirmed sightings cluster around one spot on the Xitle lava fields. That extreme geographic restriction makes any loss of habitat a direct threat to its survival, highlighting the fragile balance between a single species and a single place.

At a glance

About the Great Peeping Frog

The great peeping frog, Eleutherodactylus grandis, is endemic to a single locale near its type locality on the Xitle volcano in the southern part of the Mexico City federal district. Its natural habitat is shrubland on the lava fields, and it is thought to be restricted to the Pedregal Reserve, where it is threatened by habitat loss caused by the expansion of Mexico City.

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