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Invasive Species: Mammals

Invasive Mammals

Species that are not native and also have the potential to harm human health or to harm natural, agricultural or silvicultural resources can be listed as prohibited or restricted by the State of Michigan. If a species is prohibited or restricted, it is unlawful to possess, introduce, import, sell or offer that species for sale as a live organism, except under certain circumstances.


(Myocastor coypus)

Watch List - Prohibited in Michigan

Nutria are approximately two feet long with yellow or orange colored front teeth. They have thick, rat-like tails covered with bristly hairs.

More information: Nutria

Russian Boar

(Sus scrofa Linnaeus)

Prohibited in Michigan

Russian boar most often are brown or black and appear hairy. The piglets are lighter in color and often have stripes. They have a long, straight, narrow snout in comparison to domestic pigs. They have a straight tail with a tuft at the end. They are commonly found in rural areas but are adapting to suburban areas.

More information: Russian boar