In this episode, take a dive into the underwater vocalizations of the endangered Hawaiian monk seal. Scientists analyzing thousands of hours of underwater recordings have uncovered a surprising array of previously unknown calls. Ocean writer Melissa Hobson explores how researchers captured the sounds of the species, why they matter for conservation and what they tell us about the social lives of one of the world’s rarest seals.

Recommended Reading:

“Underwater Sound Production of Free-Ranging Hawaiian Monk Seals,” by Kirby Parnell et al., in Royal Society Open Science, Vol. 12, No. 11; November 1, 2025

Melissa Hobson’s website

Wiggling Whiskers Help Hungry Seals Hunt in the Dark

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Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.

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