https://animalfactguide.com/animal-facts/
https://www.dkfindout.com/us/more-find-out/special-events/endangered-animals/
https://www.ducksters.com/animals/endangered_animals.php
https://onekindplanet.org/top-10/top-10-worlds-most-endangered-animals/
https://www.activewild.com/endangered-animals-facts-for-kids/
https://www.activewild.com/list-of-endangered-animals/
https://www.pebblego.com/modules/1/categories/0
http://www.earthsendangered.com/index.asp
https://www.nationalgeographic.com/
https://www.worldwildlife.org/
https://pklifescience.com/
https://kids.nationalgeographic.com/