Smithsonian National Museum of Natural History, North American Mammals
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Napaeozapus insignis

Woodland Jumping Mouse

Order: Rodentia
Family: Dipodidae

Image of Napaeozapus insignis
Napeozapus insignis - southern (orange) variation (top); northwest variation (center); eastern variation (lower)
Click to enlarge. (66 kb)

Conservation Status: Least Concern.

Woodland Jumping Mice can make spectacular leaps of up to 4 m. They have large feet constructed from long foot and toe bones, and very long ankles, all of which help give them leverage when they push off. These adaptations are typical of leaping mammals, whether they are Woodland Jumping Mice hopping over the forest floor, kangaroos making speed in open terrain, or tarsiers leaping from tree to tree in a tropical forest. Unlike Meadow Jumping Mice, Woodland Jumping Mice are almost never found in open areas. These small, long-tailed Mice include fungi, butterfly larvae, beetles, and seeds in their diet, and hibernate about half the year.

Sexual Dimorphism:

Average: 233 mm
Range: 210-255 mm

Range: 14-31 g


Miller, G.S., Jr., 1891.  Description of a new jumping mouse from Nova Scotia and New Brunswick, p. 742.  The American Naturalist, 25:742-743.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Napaeozapus insignis

Image of Napaeozapus insignis
Click to enlarge. (113kb)