First confirmed observations of living Sato's beaked whales Berardius minimus.

Also, the density of cookie-cutter shark scars seemed to be noticeably higher in Sato's beaked whales than in Baird's beaked whales (which was also noted by Yamada et al., 2019). We noticed, as also noted by Brownell and Kasuya (2021), that Sato's beaked whales are shyer and less tolerant to the approaching boat than the Baird's beaked whales we observed at the Commander Islands. Beaked whales (Family Ziphiidae, Odontoceti, Cetacea) are one of the least studied groups of cetaceans. [Extracted from the article]