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Species List. (n.d.). Retrieved January 16, 2018, from https://www.worldwildlife.org/species/directory?sort=extinction_status&direction=desc
Merry, M. (n.d.). 10 Easy Things You Can Do to Save Endangered Species. Retrieved January 16, 2018, from http://www.endangered.org/10-easy-things-you-can-do-to-save-endangered-species/
How Does a Species Become Endangered? (n.d.). Retrieved January 16, 2018, from https://wonderopolis.org/wonder/how-does-a-species-become-endange
Species List. (n.d.). Retrieved January 16, 2018, from https://www.worldwildlife.org/species/directory?sort=extinction_status&direction=desc
Merry, M. (n.d.). 10 Easy Things You Can Do to Save Endangered Species. Retrieved January 16, 2018, from http://www.endangered.org/10-easy-things-you-can-do-to-save-endangered-species/
How Does a Species Become Endangered? (n.d.). Retrieved January 16, 2018, from https://wonderopolis.org/wonder/how-does-a-species-become-endange