Gombe the chimp is the grandson of Gremlin, a chimp Jane Goodall studied in Tanzania half a century ago. This portrait, titled "Laid Back," by Jackson Hole photographer Tom Mangelsen, is the official image for the 60th anniversary of Gombe Stream National Park. Photo courtesy Thomas Mangelsen
Gombe the chimp is the grandson of Gremlin, a chimp Jane Goodall studied in Tanzania half a century ago. This portrait, titled "Laid Back," by Jackson Hole photographer Tom Mangelsen, is the official image for the 60th anniversary of Gombe Stream National Park. Photo courtesy Thomas Mangelsen