The average life expectancy of a mongoose in captivity is 20 years.
Mummified mongooses have been found in ancient Egyptian tombs.
Mongooses are primarily found in Africa. Other places they are found are Southern Asia and the Iberian Peninsula. Species have been introduced to Hawaii and the West Indies.
The dwarf mongoose is usually about 7 inches and the Egyptian mongoose is about 2 feet long. They weigh from 11 ounces to 11 pounds. They usually have brown or gray grizzled fur, but some species have sport striped coats or ringed tails.
The smallest species of mongoose is the dwarf mongoose at about 7 inches opposed to the egyptian mongoose at about 2 feet long.
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I think that the mongoose would live a shorter life if left in its natural environment. In captivity, the mongoose has no predators, is fed plenty of food, and is kept in an area where people have created a similar habitat.
A nondiscriminatory predator is a predator that feeds on small animals rather than larger ones as predator usually would.
When the author says mongooses have “threatened the survival of various native species” in Hawaii and the West Indies means that the mongooses have threatened the population of species that were there before the mongooses. The mongooses have threatened the ecosystem because they do not balance with the other species.
The author's purpose for writing this passage was to inform readers about the mongoose and it's interesting abilities.