When a trio of beaked whales surfaced off Mexico’s Pacific coast, researchers thought they’d found the elusive Perrin’s beaked whale (Mesoplodon perrini), an endangered species that’s never been officially sighted alive. But upon closer inspection, the researchers realized they may have stumbled upon something even rarer — a new species of beaked whale altogether.
On November 17, the research team was sailing aboard the Martin Sheen, a vessel operated by conservation group Sea Shepherd, when they spotted the three beaked whales about 160 kilometers (100 miles) north of Mexico’s San Benito Islands. They managed to capture photos and video recordings of the animals, and also dropped a specialized microphone underwater to record the animals’ acoustic signals.
https://news.mongabay.com/2020/12/whale-of-a-find-scientists-spot-beaked-whale-believed-to-be-a-new-species/