On Facebook, the Marine Mammal Center explained how they found the mother by sounding out all the otters in the area. "The rescue boat drove all around the area, approaching every otter they could find, holding the pup out so its vocalizations could be heard. Every otter they encountered basically said, "Yup. That's a baby otter alright..." As you can see in the video, one otter had quite a more... interested... reaction."