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Male Amazon river dolphins are either solid pink or mottled grey/pink. The Amazon river dolphin is the largest river dolphin. Adult males reach a maximum length and weight of 2.55 metres (8.4 ft) (average 2.32 metres (7.6 ft)) and 185 kilograms (408 lb) (average 154 kilograms (340 lb)), while females reach a length and weight of 2.15 metres (7. ...
The pink dolphin of the Amazon River is an endangered species. The fauna of Colombia is characterized by a high biodiversity , with the highest rate of species by area unit worldwide. [ 1 ]
This dolphin is listed as "critically endangered: possibly extinct" by the IUCN, has not been seen in 20 years, and several surveys of the Yangtze have failed to find it. The species is also called the Chinese river dolphin, Yangtze river dolphin, Yangtze dolphin, and whitefin dolphin.
In 2018, the pink dolphins were classified as endangered by the International Union for Conservation of Nature, and two years later, so were the tucuxi. “The first year I came here, in one year ...
In the end, more than 200 endangered dolphins perished in the waters around Tefé — a loss of approximately 20% of the lake’s population of Amazon pink river dolphins and 7% of tucuxi.
In fact, all extant river dolphin species are endangered or critically endangered, the IUCN says. Researchers discovered the Amazonian dolphin fossil in 2018, near the Napo River in Loreto, Peru.
Isthminia panamensis is an extinct genus and species of river dolphin, living 5.8 to 6.1 million years ago. Its fossils were discovered near Piña, Panama. [15] [16] River dolphin has been considered a taxonomic description, suggesting an evolutionary relationship among the group, although it is now known that they form two distinct clades.
The number of Chinese white dolphins, which appear pink because of blood vessels beneath their skin, has slumped over the past decade to just 47. Bridge to China brings threat for Hong Kong's ...