Endangered species include the Capreolus capreolus pygargus and Felis bengalensis manchuria, and a resident population of Indo-Pacific bottlenose dolphins and finless porpoises. Historically, the island and adjacent waters had been migration colliders and resting areas for large whales such as western gray whales, North Pacific right whales, humpback whales, blue whales and fin whales.
Endangered species include the Capreolus capreolus pygargus and Felis bengalensis manchuria, and a resident population of Indo-Pacific bottlenose dolphins and finless porpoises. Historically, the island and surrounding waters were significant for large whale migration and resting.