Sperm whale scientific
Although the fossil record is poor,  several extinct genera have been assigned to the clade Physeteroidea , which includes the last common ancestor of the modern sperm whale, pygmy sperm whales , dwarf sperm whales , and extinct physeteroids. The brain is the largest known of any modern or extinct animal, weighing on average about 7. These giant mammals must hold their breath for up to 90 minutes on such dives. The largest ridge was called the 'hump' by whalers, and can be mistaken for a dorsal fin because of its shape and size. And in the Sea of Cortez, the focus of its attention is Dosidicus gigas , the jumbo squid. Parley SnotBot Expedition 7: This gives it a consistency similar to cottage cheese,  which prevents it from dissolving in the water before the calf can eat it.
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It is analogous to the melon found in other toothed whales. The wax therefore solidifies and reduces in volume. One thick band stretches from feet or so to more than feet. They occurred often in necklaces. The S-shaped blowhole is located very close to the front of the head and shifted to the whale's left. The most common natural predator of sperm whales is the orca , but pilot whales and false killer whales sometimes harass them. Sperm whale research now relies more on technology and an ability to think like a leviathan.
The Sperm Whale's Deadly Call | Science | Smithsonian
Proceedings of the Royal Society B: Individuals rarely, if ever, join or leave a social unit. Vocal clans can be huge—thousands of individuals spread out over thousands of miles of ocean. Its primary use was as a fixative in fine perfumes, and ambergris was once worth its weight in gold. Two species of the related extant genus Kogia , the pygmy sperm whale Kogia breviceps and the dwarf sperm whale K.
Description: Whales of the World. Archived from the original on 7 February The male and female sperm whales differ greatly. Archived from the original PDF on
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