Dwarf sperm whale

The dwarf sperm whale (Kogia sima, formerly Kogia simus) is one of three species in the sperm whale family. They are not often sighted at sea, and most extant information comes from the study of stranded carcasses.

Today, the dwarf sperm whale is generally classified as one of two species, along with the pygmy sperm whale, in the Kogiidae family and Kogia genus. It was not until 1966 that the two species were regarded as separate. Most taxonomists regard the family Kogiidae as belonging to the superfamily Physeteroidea, though some consider this taxon to be a subfamily (Kogiinae) of the family Physeteridae.

Dwarf sperm whale
  • Size

    The dwarf sperm whale is the smallest species commonly known as a whale. It grows up to 2.7 m (8.9 ft) in length and 250 kilograms (550 lb) in weight.

  • Feeding

    Dwarf sperm whales feed mainly on squid and crab.

  • Life History

    The calving season lasts four to five months. Pregnancy lasts for 9 to 11 months. The newborn calf is about one meter long. Males reach puberty at 2.0m and become sexually mature at 2.1 to 2.2 m.

  • Behavior

    Dwarf sperm whales are usually solitary but have occasionally been seen in small groups.