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The baiji (Lipotes vexillifer), is a probably extinct species of freshwater dolphin native to the Yangtze river system in China. It is thought to be the first dolphin species driven to extinction due to the impact of humans. This dolphin is listed as "critically endangered: possibly extinct" by the IUCN, has not been seen in 20 years, and ...
A species is declared extinct after exhaustive surveys of all potential habitats eliminate all reasonable doubt that the last individual of a species, whether in the wild or in captivity, has died. [15] Recently extinct species are defined by the IUCN as becoming extinct after 1500 CE. [1]
The life history of Māui dolphins is assumed to be very similar to that of South Island Hector's dolphins. Hector's dolphins are known to live to at least 22 years old, based on photo-based capture-recapture records last updated in 2006, [25] and become sexually mature at around six to eight years of age, [6] after which they produce one calf ...
Its closest living relatives are river dolphins living more than 6,000 miles (10,000 kilometers) away in South Asia, according to researchers who recently described the previously unknown extinct ...
Thousands of fish have died recently on Amazon rivers due to a lack of oxygen in the water. ... -The carcasses of 120 river dolphins have been found floating in a tributary of the Amazon River ...
An Amazon river dolphin as depicted in Brehms Tierleben, 1860s. The species Inia geoffrensis was described by Henri Marie Ducrotay de Blainville in 1817. Originally, the Amazon river dolphin belonged to the superfamily Platanistoidea, which constituted all river dolphins, making them a paraphyletic group. [6]
Hector's dolphin (Cephalorhynchus hectori) is one of four dolphin species belonging to the genus Cephalorhynchus.Hector's dolphin is the only cetacean endemic to New Zealand, and comprises two subspecies: C. h. hectori, the more numerous subspecies, also referred to as South Island Hector's dolphin; and the critically endangered Māui dolphin (C. h. maui), found off the West Coast of the North ...
The Seas With Nemo & Friends will go without dolphins for the first time in decades. Dolphins will no longer just keep swimming at a famous Disney World attraction based on the Finding Nemo film ...