America is home to huge and deadly mammals. These include cougars and various bears. These creatures are very good at killing their prey, and are apex predators themselves. Whenever we have two such deadly animals living in the same range, we have to wonder what would happen if they attacked each other. How would the cougar vs. bear fight end in this scenario? We’ll break down the stats about these animals and show you what to expect. To be fair, we’ll use information about grizzlies and data about large cougars. let’s start!
Comparing Mountain Lions and Bears

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mountain lion | Bear | |
---|---|---|
size | Weight: 60lbs-130lbs Length: 5ft-8ft Height: 2-3 feet at the shoulders | Weight: 400lbs-700lbs Length: 7ft-10ft Height: 3-4 feet at the shoulders |
speed and movement type | – 30 mph | – 35 mph |
defense | – high speed – large size – good senses | – cheeky – large size – Standing on hind paws in a menacing display |
offensive ability | – Strong bite, but not that strong – Very strong jaw – Long tooth – 2.5 inch claws | – 975 PSI bite – 42 teeth, about 1 inch long – Strong bite, vicious shake attack – 4 inch claws – Powerful swipe attack |
predatory behavior | – Ambushes a predator, wraps its forelimbs around the prey and brings it to the ground – Very quiet hunter, stalking potential prey before attacking | – opportunistic predator – Scavenger |
What are the main differences between mountain lions and bears?

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The biggest differences between cougars and bears are their size, morphology and predation behavior. Cougars are four-legged cats that can weigh up to 130 pounds and grow up to 8 feet in length and use a predatory ambush technique. Bears are semi-quadruped mammals that stand on two feet, weigh 700 pounds, and are 10 feet long, making them opportunistic predators.
These differences will provide us with a baseline against which to examine these organisms. We need to explore other factors to better understand which animal has enough advantage to win a fight with another.
What are the key factors in a mountain lion and bear fight?

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Key factors in a fight between a cougar and a bear include typical traits like size and speed. However, we must also consider the attack capabilities of each creature. We’ll look at several factors for each creature, determine which ones have an advantage over the others, and make an educated guess as to the winner of the battle!
Mountain Lion vs. Bear: Size
Bears are bigger than mountain lions. The average cougar can weigh up to 130 pounds, measure between 5 feet and 8 feet in length, and stand about 2 feet to 3 feet tall at the shoulder. This pales in comparison to the bear. Bears typically reach a weight of 400 pounds, a length of 10 feet, and a height of between 3 feet and 4 feet at the shoulder.
bears have sizes Has an edge over a cougar.
Mountain Lion and Bear: Speed and Movement
Bears run faster than cougars. American bears have an average speed of about 25-35 mph. Cougars can only reach speeds of around 30 miles per hour. In terms of agility, the mountain lion is even better.
The Bears have the advantage in speed.
Mountain Lion vs. Bear: Defense
Bears have better defenses than cougars. This comes in the form of speed, the ability to stand on two legs to deal with threats, and thick skin. All these benefits make it an inaccessible animal.
Cougars have a fearsome squeal, aggression, large size relative to most mammals, and speed to keep them safe. While these are good defenses, they’re not as deep as a bear’s defense.
The Bears have the edge on defense.
Mountain Lions vs Bears: Offensive Capabilities
Bears are powerful creatures that can easily kill enemies. These mammals have a bite force of 975 PSI, which is strong enough to break bones. They grab prey with their long teeth and deliver powerful strikes with their claws, cutting deep into their foes with their 4-inch claws. Their bite attack can finish animals quickly, stunning them long enough for bears to inflict great damage.
Mountain lions also have a strong bite, but not as strong as a grizzly. It relies on using its 2.5-inch claws to penetrate deep into its prey and grab them, while the puma delivers a fatal blow to the neck or head. In fact, cougars will often wrap their forelimbs around their prey, pin them down, and savagely kill them.
Both animals are very powerful hunters, but bears have more power behind their attacks.
Mountain Lions and Bears: Predatory Behavior
Bears are opportunistic predators and scavengers. They are not ambush predators that lie in wait. They spot their prey within range and attack it to great effect.
Mountain lions are ambush predators. They will stalk their prey and study them before swooping. Once they pounce, they attempt to use their weight and strength to drag the foe to the ground while delivering a deadly bite.
Mountain lions are more skilled predators, but not necessarily more successful. Still, they have the upper hand in this situation.
Who would win in a battle between a mountain lion and a bear?

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A bear would beat a cougar in a fight. The creatures don’t have venom or special attacks, so it’s unlikely the fight will end all at once. So it’s a knockout, drag fight, and the bigger, stronger, deadlier creature wins. Bears fit the bill better than cougars.
The best-case scenario for the cougar is that it surprises the bear. Even so, the bear was too large and well protected to knock it out with a bite to the neck, the preferred method of execution for mountain lions. Dense fur, thick skin, and a layer of blubber are enough to fend off cougars.
Moreover, it is difficult for bears, creatures with such sensitive senses, to sneak up on them. Once the initial attack is over, or if the animal starts on flat ground, the bear may rise up and outshine the cougar. When the animal finally attacks, the bear loses weight and overwhelms the hapless cougar.
The fight will be bloody and may last several minutes. In the end, the bear was wounded but alive. Mountain lions will be dinner.

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