Dolphins & Porpoises

Dolphins and porpoises are small, toothed whales belonging to a group of marine mammals called cetaceans. All are protected under the Marine Mammal Protection Act and some are also listed under the Endangered Species Act. We work with our partners to study, protect, and conserve these iconic species.


Peer-Reviewed Research

Publications by Northeast Passive Acoustic Research Staff

Our staff regularly publish their findings in scientific journals and Center-produced documents…

Passive Acoustics Research Group News & Media

Our Passive Acoustics Research Group frequently makes the news. This page links to articles and other media featuring our staff and their research.

Marine Mammal Strandings in San Diego County

Responding to dead whale, dolphin, porpoise, and pinniped strandings

ADRIFT in the California Current

Studying marine mammals and ocean soundscape using drifting recorders


27 species match your filter criteria.