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The critically endangered vaquita, the world's smallest porpoise and native to Mexico's Gulf of California, has been imperiled by illegal gill net fishing for an endangered fish called the totoaba ...
The International Whaling Commission released its first ever extinction alert to raise awareness surrounding the decreasing vaquita porpoise population.
The vaquita (/ v ə ˈ k iː t ə / və-KEE-tə; Phocoena sinus) is a species of porpoise endemic to the northern end of the Gulf of California in Baja California, Mexico.Reaching a maximum body length of 150 cm (4.9 ft) (females) or 140 cm (4.6 ft) (males), it is the smallest of all living cetaceans.
The Japanese sea lion and Caribbean monk seal disappeared in the 1950s, the most recent aquatic mammals to become extinct. Several land-based mammal species and subspecies have disappeared since then. If the baiji is extinct, the vaquita (Phocoena sinus) has become the most endangered marine mammal species. Some scientists retain hope for the ...
Interestingly, the genus Totoaba appears to have had a slightly wider range on the western North American coast in prehistoric times; a fossil otolith assigned to the extinct species T. fitchi is known from the Oclese Sand Formation in Kern County, California, suggesting that it reached as far north as there during the late part of the Early ...
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The number of trees threatened with extinction is more than double the number of all birds, mammals, reptiles and amphibians threatened combined, according to the assessment.
Most commonly, the declines involve reductions in abundance, though in some cases entire species are going extinct. The declines are far from uniform. In some localities, there have been reports of increases in overall insect population, and some types of insects appear to be increasing in abundance across the world. [10]