Grizzly bear

grizzly bear is a large subspecies of the brown bear native to North America. The grizzly bears are more aggressive than the black bears. Adult grizzlies are unable to climb trees hence they go face to face with their attackers. Most attacks by grizzlies are from mothers who defend their cubs. Other than that, Grizzlies avoid contact with people despite having a superior physical advantage. The usually attack when disturbed or surprised. This species is considered dangerous because of its biting force.