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This is a list of mammals of Iowa. The list includes species native to the U.S. state of Iowa and introduced into the state. It also includes mammals currently extirpated in the state.
The brown rat (Rattus norvegicus), also known as the common rat, street rat, sewer rat, wharf rat, Hanover rat, Norway rat and Norwegian rat, is a widespread species of common rat. One of the largest muroids, it is a brown or grey rodent with a body length of up to 28 cm (11 in) long, and a tail slightly shorter than that. It weighs between 140 ...
Domestic rats differ from wild rats in many ways. They are calmer and less likely to bite; they can tolerate greater crowding; they breed earlier and produce more offspring; and their brains, livers, kidneys, adrenal glands, and hearts are smaller (Barnett 2002). Brown rats are often used as model organisms for scientific research.
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The best-known Rattus species are the black rat (R. rattus) and the brown rat (R. norvegicus). The group is generally known as the Old World rats or true rats and originated in Asia . Rats are bigger than most Old World mice , which are their relatives, but seldom weigh over 500 grams (1.1 lb) in the wild.
The muskrat or common muskrat [1] (Ondatra zibethicus) is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America.
Comments on the post boast about how often people see elk in Colorado, where herds still are abundant in the wild. But in Iowa, this is a special sight. Elk were once abundant in Iowa, but now are ...
The core of the Neal Smith refuge was a 3,600-acre (1,500 ha) block of land originally acquired by Iowa Power and Light) for a nuclear power plant. The U.S. Fish and Wildlife Service acquired this land in 1990. [4] The Fish and Wildlife Service has acquired about 6,000 acres (2,400 ha) more of the allocated 11,865 acres (4,802 ha).