# sperm whale brain weight

Also, predators tend to have larger brains than their prey. The flippers of the Sperm Whale are extremely large. The reason is as follows. The brain of No. The idea that they are smart is more of a human perception. The sperm whale is the largest toothed whale, with adult males measuring up to 20.7 metres (68 ft) long and weighing up to 80 tonnes (79 long tons; 88 short tons). Assuming this applies to cetaceans, we would expect neuron data to significantly underrate the intelligence of the short-finned pilot whale, pygmy sperm whale and the harbour porpoise, and overrate the intelligence of Cuvier’s beaked whale. Weight: 41,000 kg (90,400 pounds). It holds the record for being able to dive deeper than any other whale in the world. Get a free answer to a quick problem. The new values suggest the difference between calibrating cetacean intelligence by the longevity curve or by forebrain neuron count equates to 20 points by my scale. answered  03/08/18, Experienced Mathematics, Physics, and Chemistry Tutor. A link to the app was sent to your phone. However, their large brains are proportionally smaller. They Have Huge Brains. An elephant's brain weighs just over 5 kg (11 lb), a bottlenose dolphin's 1.5 to 1.7 kg (3.3 to 3.7 lb), whereas a human brain is around 1.3 to 1.5 kg (2.9 to 3.3 lb). This is a position where they remain just below the surface of the water. Incredibly, the sperm whale has a brain that weighs around 18 pounds. The curve for the figures on the other side of that ratio was normalised by longevity data by a formula taken from the work of Suzana Herculano-Houzel. the percentage of the distribution between 0 and 1.25z). The sperm whale is the most evolutionarily modified of the toothed whales. However, the data reported in the literature and formerly used to calculate the sperm whale EQ suffered from a potential bias due to the tendency to measure mostly larger males of this extreme sexually dimorphic species. These calves drink milk for up to two years which is twice as long as other baby whales. In fact, the creature with the largest ratio is none other than the tiny shrew. While brain sizes vary with size, the relationship is hardly proportional. The tail will be completely submerged though. The largest brains are those of sperm whales, weighing about 8 kg (18 lb). Longevity may explain ‘only’ three quarters of all variance in homeotherm forebrain neuron count, but I find that the residual of neuron count over longevity in primates has such a strong relationship with intelligence as to suggest that longevity and forebrain counts come close to explaining intelligence completely. First, let's find the percentage between 0 and 1.25. Full grown, one is about 67 feet in length and will weigh close to 56 tons. The brain weights of 16 Sperm whales, of which the average body length is 49.8 feet, are shown in Table 1. We may expect the boost given by differing interspecific neural efficiency, and architecture, to vary by an additional factor from the count suggested by an animals cognitive level. Longevity has been shown to be a good proxy for neocortical neuron count. The Sperm Whale is the largest of all toothed whales, and many people immediately think of the story of Moby Dick when they see one. The bottlenose dolphin is also another creature that has a large brain. Now, informed with eight reliable data points, the picture has changed. In an animal group that employs unihemispheric sleep, we may thus expect r(i) to vary from 1-4 in cetaceans without von Economo neurons. The flippers of the Sperm Whale are extremely large.