Wildlife biologist, National Geographic journalist, and bestselling author Doug Chadwick chats with Trey Elling about FOUR-FIFTHS A GRIZZLY: A NEW PERSPECTIVE ON NATURE THAT MIGHT JUST SAVE US ALL. What has the human population explosion of the past fifty years done to plant- and animal life? Just how genetically similar are we to other creatures? Why are grizzlys, elephants, and colony insects so impressive? What are the physiological benefits of being out in nature? Are there simple steps we can take to positively impact all other lifeforms? Doug and Trey discuss these things and much more.