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Mammals of North America
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Nutria
Myocastor coypus
What's it sound like? Animal Sound 1
Sound 2
Sound 3
Identification

Large semi-aquatic rodents found near marshes and wetlands. Smaller than beavers but larger than muskrats with small ears. Mostly herbivorous and very damaging to wetland eco-systems. They are good swimmers and can travel fast on land. Population in United States is thought to have been introduced from South America. Tail drag is likely to be present in tracks.

Description
Nutria are similar to muskrats and tend to be found near coastal regions of North America. Lifespan is 8-10 years. 2-3 litters of 1-14 babies are born annually after 130 day gestations.
Adjective:glirine
Family: Myocastoridae
Latin Name: Myocastor coypus
Genus: Myocastor
Order: Rodentia
Group:colony
Other Names: Coypu, Mouse Beaver
Weight:7-10 kg
Total Length:600-1000 mm
Tail Length: 250-400 mm

Track Information

Hind Track

Front Track

Max Print Length (CM):15
Min Print Length (CM):15
Max Print Width (CM):10
Min Print Width (CM):3
Max Print Straddle (CM):30
Min Print Straddle (CM):10
Print Size:Medium
Print Type:Plantigrade
Track Notes:Track Notes: Long nails will be present in tracks.

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Mammals of North America