https://www.livescience.com/animals/whales/scientists-find-rare-tusked-whale-alive-at-sea-for-the-first-time-and-shoot-it-with-a-crossbow
"The newly-sighted cetaceans are ginkgo-toothed beaked whales (Mesoplodon ginkgodens), which were previously only known from dead individuals that had washed ashore and from bycatch. This isn't all that unusual for beaked whales, which are deep divers and notoriously cryptic, spending their lives away from coastlines..."
