The dangers to the continued survival of the grizzly bear in the continental U.S. are basically caused by increased human population.
Subdivisions continue to crowd the grizzly.
As people attempt to escape from congested areas, they will bring to the grizzly the same problems they are fleeing. As the feeding grounds of the bear shrink, there will be increased encounters. These will be unavoidable in times of diminished food supply caused from such factors as drought, fire, disease and insect infestation. Educating humans about bears has resulted in the best results to date. Knowledge about bears has come from the observations and research of scientists including the Craighead brothers, Frank and John, and Dr. Charles Jonkel.