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BYU's Cosmo the Cougar is the coolest mascot ever. As Cosmo celebrates his 70th birthday, see some of his most outrageous stunts.
Learn more about Cosmo in Y Magazine: magazine.byu.edu/article/hist...
Special thanks to @CosmoCougar and @BYUCougars
Edited by Matt Mitchell and Adam Sanders (BYU Video)
Thumbnail by Jaren Wilkey (BYU Photo)