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Simian immunodeficiency virus (SIV) is a species of retrovirus that cause persistent infections in at least 45 species of non-human primates. [1] [2] Based on analysis of strains found in four species of monkeys from Bioko Island, which was isolated from the mainland by rising sea levels about 11,000 years ago, it has been concluded that SIV has been present in monkeys and apes for at least ...
The Alaska subspecies of moose (Alces alces gigas) is the largest in the world; adult males weigh 1,200 to 1,600 pounds (542–725 kg), and adult females weigh 800 to 1,300 pounds (364–591 kg) [43] Alaska's substantial moose population is controlled by predators such as bears and wolves, which prey mainly on vulnerable calves, as well as by ...
According to a now-discredited hypothesis, the AIDS pandemic originated from live polio vaccines prepared in chimpanzee tissue cultures, accidentally contaminated with simian immunodeficiency virus and then administered to up to one million Africans between 1957 and 1960 in experimental mass vaccination campaigns.
The wildlife of Alaska is both diverse and abundant. The Alaskan Peninsula provides an important habitat for fish, mammals, reptiles, and birds. At the top of the food chain are the bears. Alaska contains about 70% of the total North American brown bear population and the majority of the grizzly bears, as well as black bears and Kodiak bears.
Tonka, the chimpanzee at the center of the HBO docuseries Chimp Crazy, is far removed from the drama included in the show today.. The 32-year-old primate first rose to fame in the 90s, when, as a ...
They usually live less than 15 years, although individuals that reach 12 years may live an additional 15 years. On rare occasions, wild chimpanzees may live nearly 60 years. Captive chimpanzees tend to live longer than most wild ones, with median lifespans of 31.7 years for males and 38.7 years for females. [75]
Chimpanzees routinely live 30 years in captivity, and can reach 60 years of age. [27] Most of the labs either conduct or make the chimpanzees available for invasive research, [58] defined as "inoculation with an infectious agent, surgery or biopsy conducted for the sake of research and not for the sake of the chimpanzee, and/or drug testing."
This refuge system created the Migratory Bird Treaty Act of 1918 which conserves the wildlife of Alaska. In 1929, a 28-year-old forester named Bob Marshall visited the upper Koyukuk River and the central Brooks Range on his summer vacation "in what seemed on the map to be the most unknown section of Alaska." [4]