North American Beaver

make a family tree showing evolution history of animal

https://www.chattnaturecenter.org/visit/experience/wildlife/animal-facts/beaver/#:~:text=IDENTIFYING%20CHARACTERISTICS%3A,use%20their%20forepaws%20like%20hands. 

https://www.beaversolutions.com/beaver-facts-education/beaver-behavior-and-biology/ 

https://www.livescience.com/52460-beavers.html 

https://www3.uwsp.edu/biology/VertebrateCollection/Pages/Vertebrates/Mammals%20of%20Wisconsin/Castor%20canadensis/Castor%20canadensis.aspx 

https://www.adfg.alaska.gov/index.cfm?adfg=beaver.printerfriendly 

Taxonomy and Evolution

Physical Characteristics

Habitat and Diet

Social Structure and Reproduction

Causes of Death and Human Impacts