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The Chinese paddlefish was officially declared extinct in 2022, with an estimated time of extinction to be by 2005, and no later than 2010, although it had become functionally extinct by 1993. [ 1 ] [ 4 ] The main cause of its extinction was the construction of the Gezhouba and Three Gorges dams , causing population fragmentation and blocking ...
[10] [11] [16] Although the American paddlefish is one of the largest freshwater fishes in North America, their recorded lengths and weights fell short in comparison to the larger Chinese paddlefish. American paddlefish commonly reach 5 ft (1.5 m) or more in length and can weigh more than 60 lb (27 kg).
The List of newspapers in Sri Lanka lists every daily and non-daily news publication currently operating in Sri Lanka. The list includes information on whether it is distributed daily or non-daily, and who publishes it.
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Parapsephurus is an extinct genus of paddlefish in the family Polyodontidae. Currently the only known species in this genus is the type species, Parapsephurus willybemisi. P. willybemisi is known a nearly complete specimen from the Tanis locality of the Hell Creek Formation in North Dakota, USA, which dates to the late Maastrichtian stage of the Late Cretaceous, approximately 66 million years ago.
List of free daily newspapers in the United States; List of weekly newspapers in the United States; Circulation. List of international newspapers originating in the United States; List of national newspapers in the United States; List of newspapers in the United States by circulation; List of newspapers serving cities over 100,000 in the United ...
A 2020 paper reported that eggs from three Russian sturgeons were crossbred with American paddlefish using sperm from four male paddlefish, resulting in hybrids called sturddlefish, a blend of the two names. The offspring had a survival rate of 62–74% and on average reached 1 kg (2.2 lb) after a year of growth.
A herd of axis deer in Maui. Hawaii is the most isolated major land mass in the world and that isolation has led to very high rates of endemism.Uniquely adapted endemic species are often sensitive to competition from invasive species and Hawaii has had numerous extinctions (List of extinct animals of the Hawaiian Islands).