El Silbo, or Silbo Gomero, is a language unlike any other form of human communication. Currently only spoken by a few remaining inhabitants of La Gomera in Spain's Canary Islands, instead of words, El Silbo is composed of a register of whistles. While little is known about the history of Guanche — original inhabitants of the Canary Islands — language(s), El Silbo existed before the arrival of Spanish settlers and was adapted to Spanish during Spanish settlement in the 16th century. However, now El Silbo is disappearing due to advancements such as digital communication. Listen to the language below, via Great Big Story, and learn more about its last speakers.

Feature image via YouTube/Great Big Story