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Marine Mammals of Hawai'i Photo Identification Guide

Screeenshot of the marine mammal guide
Ocean Exploration Trust

The Hawaiian islands and surrounding waters are home to at least 25 marine mammal species, including both pelagic (offshore) and insular (island-associated) populations. Photo identification of these animals is a powerful research tool to be able to record behaviors, population-level, and individual animal dynamics.  Learn more about different species of marine mammals and common research practices in this guide.