Giant beaked whale sexes in the region studied. They exhibit a slight reverse sexual dimorphism with females tending to be larger than males in size. The females have no post-reproductive stage. In July 2006, in the Sea of Cortez, Mexico, there was summer stranding event of 10 males of mixed age composition that was highly suggestive of male alloparental care. Baird's beaked whale has a diet that consists primarily of deep sea fish and cephalopods found at its preferred dive depths (1000-3000 m). On rare occasions, it has been known to eat octopus, lobster, crab, rockfish, herring, starfish and sea cucumbers. The species
Common minke whale auditory meatus, while dark or light speckling or streaking can occur along the flanks as well as what are called "tiger stripes" – "parallel, dark, usually vertical stripes". Like Bryde's whale (and occasionally blue and fin whales), dwarf minkes can exhibit auxiliary ridges on either side of the central ridge of the rostrum. Common minke whales have a disjointed distribution. In the North Atlantic, they occur as far north as Baffin Bay, Svalbard, Franz Josef Land, and Novaya Zemlya and as far south as 40°N (New Jersey) and the Hebrides and central North Sea during summer. There are a few