“Echoenia is the whales’ ability to relate to each other or to the environment through the use of echos.” — Oscar Frey

Hear Oscar’s personal message describing the meaning of Echoenia. He shares information about how Humpback whales synchronize their voices in songs that keep them connected over vast ocean distances, year after year.

The whale songs of this volume were collected from 2011 to 2014 as Oscar observed the annual migration of Humpback whales to the tropical breeding waters of Banderas Bay, Mexico.