The most dangerous bear in the world is the polar bear. Polar bears are apex predators, the largest bear species on earth, reaching up to 10 feet tall and weighing more than 1,700 pounds. They have extremely powerful jaws with a bite force of 1,200 psi and long, sharp claws. Unlike many other bears, polar bears will attack and eat humans, especially when hungry, and have a very low survival rate for their human victims. They also have the ability to track humans by scent similarly to other prey. Due to this combination of size, strength, aggression, and hunting behavior, polar bears are considered the most dangerous bear species worldwide.
Other bears known for danger include sloth bears, which are aggressively territorial and cause the most human fatalities annually due to their proximity to large human populations, and the Eurasian brown bear, which has become more aggressive in recent years. However, in terms of sheer threat and predatory behavior, polar bears rank at the top.
