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This list includes all 60 confirmed impact structures in North America in the Earth Impact Database (EID). These features were caused by the collision of large meteorites or comets with the Earth. For eroded or buried craters, the stated diameter typically refers to an estimate of original rim diameter, and may not correspond to present surface ...
Less than ten thousand years old, and with a diameter of 100 m (330 ft) or more. The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2]
The American black bear (Ursus americanus), or simply black bear, is a species of medium-sized bear endemic to North America. It is the continent's smallest and most widely distributed bear species. It is an omnivore, with a diet varying greatly depending on season and location. It typically lives in largely forested areas but will leave ...
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The last known grizzly bear in Colorado was killed in 1979. The decline of the bears to just 2% of their original range tells of the human-caused extirpation of large predators in the Rocky Mountain region. Only 700-900 grizzly bears may be alive today in the conterminous United States, with 300 grizzlies alive in the Canadian Rockies. [29]
As the October bear hunt nears, new rules for using bird feeders are before state legislators. Feed birds, not bears, NJ urges residents. Why state may put new rules on bird feeders
According to the California Department of Fish and Wildlife, Miller's death is the first confirmed fatal attack by a black bear in California. [9] [10] [11] June 16, 2023: Steven Jackson, 66, male Wild USA, Groom Creek, Arizona — The victim was sitting in a chair outside of his campsite when an adult male black bear attacked him. The bear ...
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