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The average size of sperm whales has decreased ... found a 1.69:1 ratio of squid to fish by weight. [163] Sperm whales sometimes take sablefish ... In comparison, ...
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.
By comparison, the modern sperm whale length measures on average 11 m (36 ft) for females and 16 m (52 ft) for males, [18] with some males reaching up to 20.7 m (68 ft) long. [19] [20] [21] The large size was probably an anti-predator adaptation, and allowed it to feed on larger prey.
Neurons for average adult [59] [60] [61] ... One early suggestion was brain size (or weight, which provides the same ordering.) ... Pygmy sperm whale: 2,020,000,000*
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 ...
Sperm whale and bottlenose whale. The sperm whale (Physeter macrocephalus) is the largest species of toothed whale, with adult bulls (males) growing to be about 15–18 m (49–59 ft) long, and weighing about 45–70 metric tons (44–69 long tons; 50–77 short tons).
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 ...
Many sperm whales have scars on their backs, believed to be caused by the hooks of colossal squid. Colossal squid are a major prey item for sperm whales in the Antarctic; 14% of the squid beaks found in the stomachs of these sperm whales are those of the colossal squid, which indicates that colossal squid make up 77% of the biomass consumed by ...