However, British and American researchers studying brown bears at an isolated salmon spawning ground in western Canada “found that while adult males avoided the tourists,... the presence of people didn’t bother mothers and cubs, who seemed to use the noise of buses as a cue that dangerous males had left the stream, ” states the report.
જેમ કે ન્યૂમોનિઆ, લોહીનું કૅન્સર, મોતિયો, મોઢાના રોગ, મૂત્રપિંડ, ગર્ભાશય, પેટ અને સ્વાદુપિંડનું કૅન્સર થાય છે.