Mammal Archives - Lewis & Clark Research Database https://lewisandclarkresearch.org/species-type/mammal/ A digital archive of treaties, documents, artwork, and 360° trail panoramas from the Corps of Discovery Wed, 18 Feb 2026 18:45:25 +0000 en-US hourly 1 White-tailed deer https://lewisandclarkresearch.org/wildlife/white-tailed-deer/ Wed, 18 Feb 2026 18:45:25 +0000 https://research.lewisandclarktrust.org/wildlife/white-tailed-deer/ White-tailed deer more widespread and common now due to changes in land use. Columbian white-tail subspecies endangered.

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]]> White-tailed deer more widespread and common now due to changes in land use. Columbian white-tail subspecies endangered.

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]]> Yellow-bellied marmot https://lewisandclarkresearch.org/wildlife/yellow-bellied-marmot/ Wed, 18 Feb 2026 18:45:25 +0000 https://research.lewisandclarktrust.org/wildlife/yellow-bellied-marmot/ Lewis saw first skins of a “moonax” among Shoshone, later described a pet animal near the John Day River.

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]]> Lewis saw first skins of a “moonax” among Shoshone, later described a pet animal near the John Day River.

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]]> Townsend’s chipmunk https://lewisandclarkresearch.org/wildlife/townsends-chipmunk/ Wed, 18 Feb 2026 18:45:24 +0000 https://research.lewisandclarktrust.org/wildlife/townsends-chipmunk/ Although Lewis gave few details, the common “ground squirrel” reported at Fort Clatsop is likely Townsend’s chipmunk.

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]]> Although Lewis gave few details, the common “ground squirrel” reported at Fort Clatsop is likely Townsend’s chipmunk.

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]]> Townsend’s mole https://lewisandclarkresearch.org/wildlife/townsends-mole/ Wed, 18 Feb 2026 18:45:24 +0000 https://research.lewisandclarktrust.org/wildlife/townsends-mole/ Lewis mistakenly described a mole at Fort Clatsop as the same as in the East. It is both a different species and genus.

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]]> Lewis mistakenly described a mole at Fort Clatsop as the same as in the East. It is both a different species and genus.

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]]> Western gray squirrel https://lewisandclarkresearch.org/wildlife/western-gray-squirrel/ Wed, 18 Feb 2026 18:45:24 +0000 https://research.lewisandclarktrust.org/wildlife/western-gray-squirrel/ A denizen of mixed hardwood forests, this squirrel is most threatened by humans due to habitat loss and vehicle impacts.

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]]> A denizen of mixed hardwood forests, this squirrel is most threatened by humans due to habitat loss and vehicle impacts.

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]]> Short-tailed shrew https://lewisandclarkresearch.org/wildlife/short-tailed-shrew/ Wed, 18 Feb 2026 18:45:23 +0000 https://research.lewisandclarktrust.org/wildlife/short-tailed-shrew/ In “box containing insects mice &c.” sent to Jefferson from Fort Mandan. Later identified as the common short-tailed shrew.

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]]> In “box containing insects mice &c.” sent to Jefferson from Fort Mandan. Later identified as the common short-tailed shrew.

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]]> Striped skunk (Great Plains subspecies) https://lewisandclarkresearch.org/wildlife/striped-skunk-great-plains-subspecies/ Wed, 18 Feb 2026 18:45:23 +0000 https://research.lewisandclarktrust.org/wildlife/striped-skunk-great-plains-subspecies/ Skunk was observed, but not collected, near Mussellshell River. Skunk numbers have increased with agricultural land use.

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]]> Skunk was observed, but not collected, near Mussellshell River. Skunk numbers have increased with agricultural land use.

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]]> Striped skunk (western subspecies) https://lewisandclarkresearch.org/wildlife/striped-skunk-western-subspecies/ Wed, 18 Feb 2026 18:45:23 +0000 https://research.lewisandclarktrust.org/wildlife/striped-skunk-western-subspecies/ Skunk’s association with people is evident from the many of this subspecies observed by Lewis around Celilo Falls

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]]> Skunk’s association with people is evident from the many of this subspecies observed by Lewis around Celilo Falls

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]]> Thirteen-lined ground squirrel https://lewisandclarkresearch.org/wildlife/thirteen-lined-ground-squirrel/ Wed, 18 Feb 2026 18:45:23 +0000 https://research.lewisandclarktrust.org/wildlife/thirteen-lined-ground-squirrel/ Lewis described a living specimen caught near Great Falls. Favoring short, dry grasslands, they are now widespread.

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]]> Lewis described a living specimen caught near Great Falls. Favoring short, dry grasslands, they are now widespread.

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]]> Pocket gopher https://lewisandclarkresearch.org/wildlife/pocket-gopher/ Wed, 18 Feb 2026 18:45:22 +0000 https://research.lewisandclarktrust.org/wildlife/pocket-gopher/ Lewis compared tunneling of pocket gophers to salamander action he was familiar with in the south. No specimen obtained.

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]]> Lewis compared tunneling of pocket gophers to salamander action he was familiar with in the south. No specimen obtained.

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