AdvertisementSpring Is Springing Sooner, Throwing Nature's Rhythms Out Of Whack07:02Download AudioResumeJuly 23, 2018Nathan RottfacebookEmailA yellow-bellied marmot keeps an eye out while it gets a bite to eat. Related to groundhogs, yellow-bellied marmots are getting fatter and bigger because of the longer growing season brought on by climate change. (NPR)