Overview
- The peer‑reviewed study in Marine Mammal Science reports the first confirmed live observations of Mesoplodon ginkgodens at sea in the eastern Pacific.
- Researchers linked the species to the previously unidentified BW43 echolocation signal, providing a tool for remote monitoring.
- A focused June 2024 expedition using hydrophones and high‑powered binoculars produced multiple encounters, and a modified crossbow secured the biopsy sample.
- Sightings documented several life stages, including an adult female with a calf, adult males, and juveniles, expanding knowledge of appearance and behavior.
- The team notes beaked whales’ sensitivity to naval sonar and says mapping habitats and calls can guide mitigation and future conservation efforts.