Gorillas Use Passwords ... and Other Facts We Learned From Our Explorers

Do you know what password to give a gorilla to be welcomed into its family? Or that our early ancestors got frisky with a different species? Find out five things we heard at National Geographic's 2015 Explorers Week, from Emerging Explorers Ella Al-Shamahi, TH Culhane, Onkuri Majumdar, Innocent Mburanumwe, and David Gruber. National Geographic celebrated its annual Explorers Week June 8-12, 2015.