See text Kogiidae is a family comprising at least two extant species of Cetacea, the pygmy (Kogia breviceps) and dwarf (K. sima) sperm whales.

[5] This relationship is supported by similarities of the anatomical structures in the head, responsible for sound production, in particular the presence of a spermaceti organ.

[9]ORDER ARTIODACTYLA Kogiid skulls are characterized by a very short rostrum, the smallest among extant cetaceans, as well as high levels of asymmetry, which is expected among odontocetes.

[17] Kogiidae are believed to be cosmopolitan species, inhabiting all oceans except polar waters, remaining between the 50° latitude lines.

were shown to exhibit sympatry, similar to the two modern members of Kogia, which researchers suggested shows that this behavior has been part of Kogiidae for at least 3 million years.

[18] Extant kogiids travel in small groups and rarely surface, potentially to avoid predators like orcas.