Berardius

Berardius is a genus of beaked whales in the family Ziphiidae. These large cetaceans are found in deep oceanic waters worldwide, although their distribution is not fully understood due to their elusive nature. Currently, two species are recognized: B. arnuxii, the southern beaked whale, and B. bairdii, the northern beaked whale. A third, B. magnificus, was formerly recognized but is now generally considered synonymous with B. arnuxii.

Berardius whales are characterized by their long, prominent beaks, which give the genus its common name. Their bodies are robust, with a relatively small dorsal fin located far back on the body. They are typically dark gray or brown in color, sometimes with lighter undersides. Little is known about their social structure, but they are believed to live in small groups. Their diet consists primarily of deep-sea squid and fish, which they catch by deep foraging dives. Due to their remote habitat and deep diving capabilities, sightings are infrequent, and much of our knowledge comes from stranded individuals or incidental catches. Conservation status varies by species, with ongoing research needed to fully assess population sizes and threats.