The coquí call comes from small frogs in the genus Eleutherodactylus, especially the common coquí, Eleutherodactylus coqui, native to Puerto Rico. Male frogs produce the familiar two-note call, commonly heard as “ko-kee,” primarily at night. The sound became a widely recognized symbol of Puerto Rican identity through everyday life, music, tourism, and online media. Short recordings remain popular in videos because the call is instantly recognizable, culturally meaningful, and compact enough to punctuate a scene without interrupting its pace.