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An article in The New York Times claimed that the world holds 300 pounds of insects for every pound of humans. [28] Ants have colonised almost every landmass on Earth. Their population is estimated as between 10 16 –10 17 (10-100 quadrillion). [29]
This is a collection of lists of mammal species by the estimated global population, divided by orders. Lists only exist for some orders; for example, the most diverse order - rodents - is missing. Much of the data in these lists were created by the International Union for Conservation of Nature (IUCN) Global Mammal Assessment Team, which ...
Orcas are the largest extant members of the dolphin family. Males typically range from 6 to 8 m (20 to 26 ft) long and weigh in excess of 6 t (5.9 long tons; 6.6 short tons). Females are smaller, generally ranging from 5 to 7 m (16 to 23 ft) and weighing about 3 to 4 t (3.0 to 3.9 long tons; 3.3 to 4.4 short tons). [ 32 ]
The common dolphin (Delphinus delphis) is the most abundant cetacean in the world, with a global population of about six million. [3] Despite this fact and its vernacular name, the common dolphin is not thought of as the archetypal dolphin, with that distinction belonging to the bottlenose dolphin due to its popular appearances in aquaria and the media.
Several species of dolphins may suffer from Alzheimer’s disease, according to a new study. The research could help explain the widespread yet puzzling phenomenon of mass dolphin strandings ...
Orcinus is a genus of Delphinidae, the family of carnivorous marine mammals known as dolphins. It includes the largest delphinid species, Orcinus orca , known as the orca or killer whale. Two extinct species are recognised, Orcinus paleorca and O. citoniensis , describing fossilised remains of the genus. [ 2 ]
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The pink river dolphin is the largest freshwater dolphin in the world. It can reach up to 2.8 metres (9.2 ft) long and weigh as much as 180 kilograms (400 lb). Compared to its cousin, the Amazonian river dolphin (Inia geoffrensis), the Bolivian river dolphin has more teeth, a smaller skull, and a longer body. [2]