Why Do Squirrels Dig?

Squirrels eat a lot of things that are pretty tricky to find in the winter, like nuts and berries. Luckily for them, they have lots of clever ways to store up food to last them through the cold parts of the year!

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SOURCES:
https://www.livescience.com/28182-squirrels.html
https://ssec.si.edu/stemvisions-blog/why-do-squirrels-bury-nuts-and-other-mysteries
http://www.discoverwildlife.com/british-wildlife/how-do-squirrels-find-their-nuts
http://www.nytimes.com/1994/12/11/nyregion/cuttings-now-it-can-be-told-all-about-squirrels-and-nuts.html
http://jacobs.berkeley.edu/wp-content/uploads/2015/10/Animal-Behaviour-1991-Jacobs.pdf