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These rats form small colonies with nesting areas, a network of underground runways and many conspicuous latrines. Latrines are large fecal piles the rats deposit on protected flat rocks. [6] In some cases, researchers have found dried leaves placed around the nesting area which appear to act as alarms to warn the rats of approaching danger. [9]
This list of mammals in Pennsylvania consists of 66 species currently believed to occur wild in the state. This excludes feral domesticated species such as feral cats and dogs . Several species recently lived wild in Pennsylvania, but are now extirpated (locally, but not globally, extinct).
Males average around 0.26 hectares (0.64 acres) and the species-wide average territory area is 662 square metres (7,130 sq ft). Being solitary, the rats tend not to stray much farther than 21 metres (69 ft) from their nests unless sexually active or for a preferred food. [11]
Giant pouched rats are only distantly related to the true rats, although until recently they had been placed in the same family, Muridae. [1] Recent molecular studies, however, place them in the family Nesomyidae, part of an ancient radiation of African and Malagasy muroids. The name "pouched rat" refers to their large cheek pouches. The ...
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The marsh rice rat (Oryzomys palustris) is a semiaquatic North American rodent in the family Cricetidae.It usually occurs in wetland habitats, such as swamps and salt marshes.
Eight giant African pouched rats were able to detect four wildlife samples from 146 non-target items during this four-year study.