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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).
When dolphins were engaged in an aggressive interaction or a more relaxing activity like parallel swimming or upside-down swimming, scientists didn’t observe the “smiling” expression.
To do this, females often change their habitats to get away from aggressive males, as is seen in wild Trinidadian guppies (Poecilia reticulata). [9] Female bottlenose dolphins behave in similar ways by moving into shallow waters where there are not too many males. [9]
The Amazon river dolphin (Inia geoffrensis), also known as the boto, bufeo or pink river dolphin, is a species of toothed whale endemic to South America and is classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis ( Bolivian river dolphin ) and I. g. humboldtiana ...
Injuries on the dorsal fin of the dolphin involved in the Aug. 20 attack match those of a dolphin spotted off the coast last year, said Tadamichi Morisaka, a researcher at the Cetacean Research ...
Nine dolphins at Miami Seaquarium were underfed as a form of punishment, causing unhealthy weight loss and dangerous aggressive behavior, according to a critical inspection by the federal agency ...
Bottlenose dolphins repeat another dolphin's signature whistle back in order to address that particular dolphin individually. [11] Unlike other animals, dolphins do not display this behavior in aggressive situations. [11] Humans and dolphins are the only known species to use vocal copying in cooperative contexts. [11]
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. [3] Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).