Northern Grasshopper Mouse (Onychomys leucogaster) lives in open grasslands across North America. It feeds on insects and scorpions. Its conservation status is Least Concern.
Fascinating facts about the Northern Grasshopper Mouse
- The northern grasshopper mouse eats mainly meat, preying on insects, other mice and even snakes, with plants making up at most a quarter of its intake. Its diet is described as "mostly carnivorous" and includes small insects, other mice and snakes, while plant matter never exceeds twenty-five percent. Vegetation is eaten most heavily in midwinter, showing a seasonal shift in food use.
- Its tail is unusually short, measuring under 30% of its total length, while most mice have proportionally longer tails. The mouse is stocky, averaging 164 mm in length and about 35 g in weight, giving it a compact build. Because the tail is so short, it contributes to the overall stocky appearance that sets this species apart from other rodents. The combination of a brief tail and solid body shape is a distinctive physical trait.
- A retreat burrow provides a rapid escape route, digging about 10 inches into the ground at a 45° angle. This specialised tunnel is part of a larger system of multiple burrows, each serving a different function such as nesting, caching seeds or marking territory. The retreat burrow's steep design allows the mouse to flee quickly from predators, enhancing its survival in open prairie habitats.
- The northern grasshopper mouse often lives close to colonies of black-tailed prairie dogs, taking advantage of the disturbed ground they create. This proximity gives the mouse ready access to burrows that it can either adopt or modify for its own use, providing shelter and a refuge from predators. The shared habitat also supplies a reliable food source, as the mouse can hunt insects and other small prey attracted to the prairie-dog activity.
- Studies of grasshopper mice from regions with a history of plague found them significantly more resistant to the bacterium Yersinia pestis than mice from plague-free zones, leading scientists to label them a potential alternate host for the disease. Their heightened resistance suggests they could play a role in maintaining plague within prairie ecosystems, especially since they carry many flea species that transmit the pathogen.
Sources
Every fact above was checked against these pages, and kept only where one of them states it.
At a glance
RangeNorth America
HabitatOpen grasslands
DietInsects and scorpions
About the Northern Grasshopper Mouse
In the arid expanse of the North American grasslands, a tiny, fierce predator roams, its grey and white coat blending seamlessly into the dusty landscape as it stalks its prey with stealthy precision. The Northern Grasshopper Mouse is a paradox of cute and cunning, its large ears and round eyes belied by a ruthless appetite for insects, scorpions, and even other small mammals, making it a formidable hunter in this unforgiving environment. As it darts through the underbrush, its agile body weaving in and out of shadows, it is a testament to the remarkable adaptability of life in the wild.
Hear the Northern Grasshopper Mouse, and 4,400+ more
Real recorded sounds, 11 nature games and a free Daily 5, 1v1 quiz duels, conservation wins and a safe Kids mode. Free on Feravox.
