Synonymer & Anagram | Engelska ordet BAIJI

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).
The genus Prolipotes, which is based on a mandible fragment from Neogene coastal deposits in Guangxi, China, has been classified as an extinct relative of the baiji, but is dubious.
In 2007 fears were expressed that China's finless porpoise, locally known as the jiangzhu ("river pig"), a native of the lake along with other waters such as Dongting Lake, might follow the baiji, the Yangtze river dolphin, into extinction.
This low frequency could be related to the relatively low rate of molecular evolution in cetaceans; however, considering that the decrease in the rate of molecular evolution in the baiji was not as great as the decrease in heterozygosity rate, it is likely that much of the low genetic diversity observed was caused by the precipitous decline in the total baiji population in recent decades and the associated breedings.
Most of Würsig's research, while focused generally on social, sexual, calf rearing, and foraging strategies, has been related to human use of the marine environment, as well as tucuxi and boto dolphins of the Amazon and the now believed to be extinct baiji of the Yangtze River.

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