Bobʼs brother-in-law Al sends an email detailing his encounter with a groundhog in his garden. As Al found out groundhogs will put up a fight for garden vegetables. Our sources for this episode include: 9 Things You Didnʼt Know About Groundhogs - http://voices.nationalgeographic.org/2014/01/31/9-things-you-didnt-know-about-groundhogs Groundhogs in Your Garden - https://www.huffingtonpost.com/2013/02/01/groundhogs-in-your-garden_n_2593390.html Groundhogs by National Geographic - http://www.nationalgeographic.com/animals/mammals/g/groundhog/ Groundhog Fun Facts - http://www.groundhog.org/about/fun-facts-faq/