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Bolivian river dolphins were discovered by the Western world in 1832 by French researcher Alcide d'Orbigny. [2] The Bolivian river dolphin was briefly thought to be a subspecies (as I. geoffrensis boliviensis) of the Amazonian river dolphin, Inia geoffrensis, but differences in body structure and the isolation of the Bolivian river dolphin led to it being classified as its own species in 2012. [3]
During the process of catching the commercialized fish, the Amazon river dolphins get caught in the nets and exhaust themselves until they die, or the local fishermen deliberately kill the entangled dolphins. [40] The carcasses are discarded, consumed, or used as bait to attract a scavenger catfish, the piracatinga (Calophysus macropterus).
Sloths can hold their breath for up to 40 minutes, while dolphins can only hold theirs for around 10 minutes. ... Interesting Facts for Kids. 66. Scotland's national animal is a unicorn. 67 ...
Although river dolphins do not possess fully developed hind limbs, some possess discrete rudimentary appendages, which may contain feet and digits. River dolphins are slow swimmers in comparison to oceanic dolphins, which can travel at speeds up to 35 miles per hour (56 km/h); the tucuxi can only travel at about 14 miles per hour (23 km/h). [26]
Bottlenose dolphins are the only other species to have names for themselves. ... Interesting facts for kids. Bats are the only flying mammals. Tomatoes are a fruit, not a vegetable.
New Dolphins take a swing at creative questions.
The order Cetacea includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater. Suborder: Odontoceti. Superfamily: Platanistoidea. Family: Iniidae. Genus: Inia
A common bottlenose dolphin (Tursiops truncatus). A dolphin is an aquatic mammal in the clade Odontoceti (toothed whale).Dolphins belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the brackish dolphins), and possibly extinct Lipotidae (baiji or Chinese river dolphin).