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Zapodidae, the jumping mice, is a family of mouse-like rodents in North America and China. Although mouse-like in general appearance, these rodents are distinguished by their elongated hind limbs, and, typically, by the presence of four pairs of cheek-teeth in each jaw.
Formerly, Dipodoidea contained only a single large family, Dipodidae, which contained jerboas, jumping mice, and birch mice as subfamilies. However, phylogenetic evidence found all three to be distinct families from one another, and thus they were split into three different families within Dipodoidea.
The mouse is around nine inches long, 60% of which is the tail, [5] and can jump in bounds of four feet when threatened. It usually travels slowly. It swims and climbs grass stems. It has long hind legs and a long, slender, scaly tail that it uses to communicate by making drumming noises. It also communicates using clucks and chirps.
Males become sexually active in May or June, which is when females are also fertile. Their gestation period lasts about 18–23 days and give birth in July or August. Each litter consist of about 4-8 young, which are weaned after 4 weeks. The Pacific jumping mouse are born pink and hairless, and weigh around 0.7–0.9 grams at birth.
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The woodland jumping mouse is a medium-sized rodent. The species is darker in the south. [4] [6] The mouse has adaptations to live in cold climate. [4] The mouse has small, high-crowned skull. Three molariform teeth are present, premolars are absent, and grooved incisors are orange or yellow. Its molars are both rooted and have hypsodont. The ...
The gestation period is about forty days and the litter size ranges from two to five. There is a single litter in the year and a long developmental period before the young are weaned. When first born, the young have hind legs the same length as their forelegs and as they begin to move around, do so by dragging themselves with their forelimbs. [7]