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Whale Species Spotted in Wild for First Time

December 08, 2025

WORT 89.9FM Madison · Whale Species Spotted for First Time

You might think that human beings have explored every inch of the planet earth, and that few mysteries remain.  Yet, the earth, especially its oceans, are almost unimaginably vast and continue to yield surprises.  In 2024, a joint research expedition involving Oregon State University and the U.S. Navy witnessed a species of beaked whale never before seen by humans in the wild.  Dead Ginkgo-Toothed Beaked Whales had occasionally washed up on Pacific shores, but until last year, no one had ever seen one alive.  Elizabeth Henderson is a bioacoustic scientist with the U.S. Naval Information Warfare Center, was onboard the research vessel “Pacific Storm” for the discovery, and is the lead author of the research article published in the journal “Marine Mammal Science.”  Elizabeth Henderson joined the Monday Buzz on December 8, 2025.

A young adult male ginkgo-toothed beaked whale (#2b, lower left) swims along with the same adult male (#2a, upper right) from Figures 3 and 4. The erupted tooth of the younger individual is just visible (arrow, inset), and it does not have white scar tissue around it or bruising, presumably because it has not been fighting with other males yet; the lips on the lower jaw are just starting to turn white. (Photo by C. Hayslip.) Locations of confirmed stranded or fishery-caught ginkgo-toothed beaked whales in the North Pacific Ocean (in purple triangles; from Bachara et al. 2023; Marine Mammals Database ;Bradford 2018; Dalebout et al. 2008, 2014; Moore and Gilmore 1965), acoustic-only detections of BW43 echolocation pulses (in blue; from Barlow et al. 2022; Baumann-Pickering et al. 2014; Fregosi et al. 2020; Simonis et al. 2020; Henderson et al. 2022, 2024), and the acoustic detections and sightings from this study (in red). Note that the two strandings in the Galapagos Islands in green squares have been published (Palacios 1996; Palacios et al. 2004) but are not genetically confirmed.

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