The last of the "Grizzly Bear Brothers", John Craighead passed yesterday at age 100..................."John Craighead and his twin brother, Frank, were intrepid explorers and pioneering conservation biologists who helped reshape our scientific understanding of grizzly bears, the migration patterns of predators, and the ecology of the greater Yellowstone system"............ "They chronicled their explorations in the pages of National Geographic magazine, starting in 1936, when they were 20 years old"............."In 1998, John Craighead received the Aldo Leopold Award, and both twins were named among America's top scientists of the 20th century by the Audubon Society".............

https://www.google.com/url?rct=j&sa=t&url=http://news.nationalgeographic.com/2016/09/john-craighead-yellowstone-bears-biologist/&ct=ga&cd=CAEYAioTMTA0NTU3ODkyMTEzMTg2NzMxNTIaNTZkMWU3ZjE5ZThmOTk5MTpjb206ZW46VVM&usg=AFQjCNHsk02JI0iT4ZU1N6uEIg1IvxroTg

THE POWER OF PARKS

Pioneering Conservation Biologist 

Reshaped Our Understanding of 

Bears and Yellowstone

John Craighead passed away at the 
age of 100.

by Brian Clark Howard

PUBLISHED SEPTEMBER 21, 2016

View Images John Craighead, as photographed for National Geographic magazine by Erika Larsen PHOTOGRAPH BY ERIKA LARSEN,NATIONAL GEOGRAPHIC CREATIVE

John and Frank Craighead
in Yellowstone studying Griz