Resources
http://clipart-library.com/squirrel-images-free.html
https://www.forbes.com/sites/quora/2018/01/22/what-lived-on-pangaea/#4e34bbd361ab
https://www.nationalgeographic.com/animals/mammals/group/squirrels/
https://www.thecanadianencyclopedia.ca/en/article/niagara-escarpment
https://today.duke.edu/2003/02/squirreltree0302.html