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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 ...
From coral reefs to river dolphins, these 20 marine species have their days numbered. ... Gray Whales & 19 Other Marine Species That Could Go Extinct by 2050. Jennifer Magid. June 28, 2024 at 10: ...
Extinction of taxa is difficult to confirm, as a long gap without a sighting is not definitive, but before 1995 a threshold of 50 years without a sighting was used to declare extinction. [ 1 ] One study found that extinction from habitat loss is the hardest to detect, as this might only fragment populations to the point of concealment from humans.
The list of extinct cetaceans features the extinct genera and species of the order Cetacea. The cetaceans ( whales , dolphins and porpoises ) are descendants of land-living mammals, the even-toed ungulates .
Researchers found an increase in common dolphin sightings in the English Channel and Hebrides, and a decline in white-beaked dolphins in the Hebrides.
Of these, three have been confirmed as Hector's dolphins and, where the cause of death could be determined, the deaths of all but one were from disease and natural causes. [38] The single Hector's or Māui dolphin death attributed to fishing was captured in a set net off Cape Egmont, in Taranaki waters in January 2012.
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After demands were made by wildlife activists for a project to save dolphins in India, Project Dolphin was launched as an Indian government initiative to conserve both riverine and oceanic dolphin species in 2021. [1] [2] It was announced on 15 August 2020 during the 74th independence day celebrations by then Indian prime minister Narendra Modi ...