Field Guide

Mammals

Showing 1 - 10 of 11 results
Media
Image of woodchuck (groundhog)
Species Types
Scientific Name
Marmota monax
Description
One of the best-known wild mammals in Missouri, the woodchuck, or groundhog, is a rodent in the squirrel family. The name “woodchuck” is possibly derived from an Indian name for this species.
Media
Photo of long-tailed weasel
Species Types
Scientific Name
Mustela frenata
Description
Long-tailed weasels are small but voracious predators. They are rare in our state but are most common in the south-central and southwestern portions. In summer, they are brown with yellow beneath. In winter their fur is paler or white. The tail has a black tip.
Media
Photo of least weasel
Species Types
Scientific Name
Mustela nivalis
Description
This mouse-sized weasel is found only in Missouri’s northern counties, and abundance varies locally and seasonally, depending on fluctuating rodent numbers—their favorite food.
Media
photo of a thirteen-lined ground squirrel
Species Types
Scientific Name
Ictidomys tridecemlineatus
Description
The thirteen-lined ground squirrel has 13 alternating brown and whitish lines (some may be broken into spots) along its back and sides, creating rows of whitish spots within dark lines. It stands upright to survey its surroundings and dives into its burrow when it senses danger.
Media
eastern mole
Species Types
Scientific Name
Scalopus aquaticus
Description
Eastern moles are plush-furred, large-handed critters infamous for disfiguring lawns as they tunnel belowground hunting for grubs and cutworms — many of which are also dreaded by landscapers!
Media
Image of an armadillo
Species Types
Scientific Name
Dasypus novemcinctus
Description
There’s no other animal in Missouri that can be mistaken for an armadillo! Fifty years ago, they were not considered residents, but now they are regularly found in the southern half of the state.
Media
Photo of a deer mouse in its nest made of dry grasses
Species Types
Scientific Name
Peromyscus maniculatus
Description
The deer mouse is found statewide, usually in open habitats like fields and grasslands. It and our other three species of Peromyscus mice look a lot alike.
Media
Image of a spotted skunk
Species Types
Scientific Name
Spilogale putorius
Description
Of the two species of skunks in Missouri, the eastern spotted skunk is less common and lesser known. It has been declining drastically in recent years because of habitat loss.
Media
Photograph of a striped skunk walking
Species Types
Scientific Name
Mephitis mephitis
Description
Skunks are omnivorous mammals notorious for their ability to discharge an obnoxious scent when provoked, and the striped skunk is the most commonly encountered skunk in our state.
Media
Photo of a little brown myotis hanging from cave wall with lesions on its wrist.
Species Types
Scientific Name
Myotis lucifugus
Description
The little brown myotis (little brown bat) is one of our most common bats, but populations are declining. White-nose syndrome has taken a heavy toll in northeastern states. This species is now listed as vulnerable across its range.
See Also

About Mammals in Missouri

More than 70 species of wild mammals live in Missouri: opossums; shrews and moles; bats; rabbits; woodchuck, squirrels, beaver, mice, voles, and other rodents; coyote, foxes, bear, raccoon, weasels, otter, mink, skunks, bobcat, and other carnivores; deer and elk; and more. Most of us recognize mammals easily — they have fur, are warm-blooded, nurse their young, and breathe air.