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• Sperm whales exhibit a large amount of sexual dimorphism with their size and proportions, with males generally being much larger than females. Female sperm whales are sexually mature at 8 to 9 meters (26 to 30 ft) in length, and physically mature at about 10.6 to 11 meters (35 to 36 ft), on average.
The average size of sperm whales has decreased over the years, probably due to pressure from whaling. [35] Another view holds that exploitation by overwhaling had virtually no effect on the size of the bull sperm whales, and their size may have actually increased in current times on the basis of density dependent effects. [47]
Size comparison of an average human and a pygmy sperm whale (Kogia breviceps) This W3C-unspecified vector image was created with Inkscape . Size comparison of an average human and a dwarf sperm whale (Kogia sima).
Size comparison between the sperm whale (blue), the pygmy sperm whale (green), and the dwarf sperm whale (orange) The dwarf sperm whale can range in size from 2 to 2.7 m (6.6 to 8.9 ft) in length and 136 to 272 kg (300 to 600 lb) in weight—less than the 4.25 m (14 ft) and 417 kg (920 lb) pygmy sperm whale.
The whale was measured at about 44 feet (13 meters) long, roughly the size of a large school bus. It weighs as much as 70,000 pounds (31,700 kilograms), officials said. ... Sperm whales are listed ...
Whales range in size from the 2.6 metres (8.5 ft) and 135 kilograms (298 lb) dwarf sperm whale to the 29.9 metres (98 ft) and 190 tonnes (210 short tons) blue whale, which is the largest known animal that has ever lived. The sperm whale is the largest toothed predator on Earth.
Scientists studying the sperm whales that live around the Caribbean island of Dominica have described for the first time the basic elements of how they might be talking to each other, in an effort ...
By the 18th century, the Azores’ resident population of sperm whales was drawing attention from the United States. Whaling ships from Nantucket and New Bedford, Massachusetts, would make the ...