Sperm whale imges

The sperm whale, unlike other odontocetes, has only one pair of phonic lips, whereas all other toothed whales have two, [96] and it is located at the front of the nose instead of behind the melon. Blue whale isolated on white background. Isolated on white background. Sperm whale threats The sperm whale has a long history of commercial exploitation 1. Blue whale, sperm whale, dolphin, orca. Spermaceti oil was important in public lighting for example, in lighthouses, where it was used in the United States until , when it was replaced by lard oil, in turn replaced by petroleum and for lubricating the machines such as those used in cotton mills of the Industrial Revolution. Retrieved 13 May

In the eastern tropical Pacific, recent whaling was extremely intensive, and birth rates at present are very low. Two forms of cultural currency in an economy of sentiment". The grooves between the knobs trap a consistent film of air, making it an excellent sound mirror.