Bushy-tailed Woodrat (Neotoma cinerea) lives in mountain forests across Western North America. It feeds on seeds and fruits. Its conservation status is Least Concern.
Fascinating facts about the Bushy-tailed Woodrat
- Male bushy-tailed woodrats tower over females, weighing up to 600 g while females average just 270 g, a difference of about 50 % in size. Their adult length spans 11-18 in (28-46 cm) with half that length being a bushy tail, and a full adult weighs roughly 1.3 lb (590 g). This extreme dimorphism lets males dominate territories and compete fiercely for mates.
- Bushy-tailed woodrats inhabit a staggering elevation band, from sea level up to 14,000 ft (4,300 m), and as high as 3,700 m elsewhere, yet recent surveys have recorded them as low as 1,200 m, overturning the old belief they only live on mountaintops. During the Pleistocene they even reached southern Mexico at lower heights.
- Reproduction races ahead: breeding runs from May through August, a gestation of about five weeks yields litters of two to six pups (usually three). Remarkably, females can mate again just 12 hours after giving birth and may carry a new litter while still nursing the previous one.
- Middens are time capsules: the rats pile plant bits, feces and urine into solidified piles that can persist for thousands of years. Their urine, rich in calcium carbonate and oxalates from succulent foods, cements these structures. Scientists read the fossilized plant remains and pellet sizes to track climate swings over the past 25,000 years, making the woodrat an unexpected climate historian.
- These herbivores never sip water; they extract all moisture from the leaves, shoots and succulents they munch. Their diet leans heavily on woody vegetation, but in dry spots they favor succulent plants high in oxalates, which also enrich their urine's mineral content. By relying solely on food-borne water, they can survive in arid rocky habitats where free water is scarce.
Sources
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At a glance
RangeWestern North America
HabitatMountain forests
DietSeeds and fruits
About the Bushy-tailed Woodrat
In the rugged expanse of North America's wilderness, the bushy-tailed woodrat navigates its domain with quiet industry, its large eyes shining like lanterns in the dark as it scurries through the underbrush with a soft rustle of leaves. With a plump, rounded body and a characteristic bushy tail that streams behind it like a banner, this unassuming rodent moves with a purposeful air, gathering and storing seeds, fruits, and twigs in its intricate network of nests and caches. As the woodrat's paws barely disturb the forest floor, it embodies a serene and self-contained world, a testament to the enduring power of adaptability in the wild.
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