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The blue whale is the largest animal known ever to have existed. [41] [42] [43] Some studies have estimated that certain shastasaurid ichthyosaurs and the ancient whale Perucetus could have rivalled the blue whale in size, with Perucetus also being heavier than the blue whale with a mean weight of 180 t (180 long tons; 200 short tons).
Size of Paraceratherium (dark grey) compared to a human and other rhinos (though one study suggests Palaeoloxodon namadicus may have been a larger land mammal) The blue whale is the largest mammal of all time, with the longest known specimen being 33 m (108.3 ft) long and the heaviest weighted specimen being 190 tonnes.
Brain–body mass ratio, also known as the brain–body weight ratio, is the ratio of brain mass to body mass, which is hypothesized to be a rough estimate of the intelligence of an animal, although fairly inaccurate in many cases. A more complex measurement, encephalization quotient, takes into account allometric effects of widely divergent ...
They are considered one of the most intelligent cetaceans. Cetacean intelligence is the overall intelligence and derived cognitive ability of aquatic mammals belonging in the infraorder Cetacea (cetaceans), including baleen whales, porpoises, and dolphins. In 2014, a study found for first time that the long-finned pilot whale has more ...
The humpback whale ( Megaptera novaeangliae) is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus Megaptera. Adults range in length from 14–17 m (46–56 ft) and weigh up to 40 metric tons (44 short tons). The humpback has a distinctive body shape, with long pectoral fins ...
The human brain contains 86 billion neurons, ... One early suggestion was brain size (or weight, which provides the same ordering.) ... Blue whale: 5,000,000,000 ...
a larger head relative to body size; a heavier body weight compared to other blue whales of the same length [8] Pygmy blue whales reach sexual maturity at 10 years of age and a length of 19.2 m (63 ft), weighing on average 52.5 t (51.7 long tons; 57.9 short tons).
Stunning photo shows diver's close encounter with 100-foot blue whale. Alex Lasker. Updated May 28, 2019 at 2:02 PM. An underwater photographer who got up close and personal with a massive blue ...