Pygmy sperm whale live

The hyoid bone is unusually large, and presumably has a role in the whale's suction feeding. Breaching has been observed, but is not common. Perhaps they are arguing over the remote control. They do not exchange much between the Pacific and Atlantic Oceans and are considered by some researchers to be genetically diverse between ocean basins. The skin is wrinkled only when closely observed and has a brownish to dark bluish-gray coloration on the dorsal side. In the Indian Ocean, specimens have been found on the south coast of Australia and on many places along the Indian Ocean's northern coast.

The females cooperate to protect and nurse their young. Spermaceti oil called "sperm" for short , from which the whale derives its name, was a prime target of the whaling industry, and was dominant for use in oil lamps, lubricants, and candles. The Shire of Mornington Peninsula. Until , the species was generally known as P. Before diving, they will slowly roll or sink and disappear from view without displaying their flukes. An unusual characteristic that distinguishes pygmy and dwarf sperm whales from other cetacean species is the use of the "squid tactic.

The left passage runs alongside the spermaceti organ and goes directly to the blowhole, whilst the right passage runs underneath the spermaceti organ and passes air through a pair of phonic lips and into the distal sac at the very front of the nose. By reducing the abundance of sperm whales in the Southern Ocean, whaling has resulted in an extra 2 million tonnes of carbon remaining in the atmosphere each year. Gestation in these cetaceans is probably about months. Redirected from Physeter macrocephalus. Archived from the original on