Think you can outrun a grizzly bear? Think again…
Reaching speeds around 35-40 miles per hour, they can run faster than any human can run, even the fastest to ever live. Even world-class sprinters like Usain Bolt, who run for 100 or 200 meters at most, top out south of 30 miles per hour (his record is just below 28 miles per hour). And how long can they sustain a top speed like that? Not as long as a bear…
There’s a reason why they tell you not to run away from a bear if you come across one in the woods. One, and perhaps the most important is that you can trigger its chase response, but number two:.. it can run you down in mere seconds.
Grizzly bears are freak athletes… let’s break it down.
The grizzly bear is a massive North American subspecies of the brown bear, and their found primarily in Alaska, western Canada, and isolated pockets of the northwestern United States, such as the Greater Yellowstone and Glacier National Park ecosystems. Basically, inland brown bears in North America are called grizzlies, but they’re the same exact species as the big coastal browns in Alaska, and the brown bears found in Eurasia. All grizzly bears are brown bears, but not all brown bears are grizzly bears…. make sense?
But despite their bulky and kind of clumsy appearance, grizzly bears are apex athletes capable of shocking speed. A mature grizzly can sprint at up to 35-40 miles per hour. At top speed, a grizzly can easily outrun an Olympic sprinter, run down a fleeing elk, and even overtake a horse in a short-distance sprint. Their acceleration is explosive, allowing them to close a 50-yard gap in just a few seconds.
Grizzlies are easily recognizable by their pronounced shoulder hump. This hump is a solid mass of muscle anchored to their spine, generating immense forelimb strength. They use this power to dig out roots, excavate winter dens in frozen soil, flip massive boulders, and tear apart rotting logs to find insects. Adult males in the interior typically weigh between 400 and 700 pounds, while coastal bears with access to high-protein salmon runs frequently exceed 1,000 pounds.
While their four-inch, slightly curved claws are biologically engineered for digging rather than gripping bark, the idea that grizzlies cannot climb trees is a myth. Cubs are excellent climbers, and while adults find it cumbersome due to their sheer weight, a motivated adult grizzly can aggressively muscle its way up a tree with surprising speed. They are also highly capable endurance swimmers, regularly navigating wide, fast-moving rivers to reach feeding grounds.
Here’s the proof.
In this video here, a car is driving along a mountain road when they spot a bear on the side and speed up to catch up to its sprint. Topping out near 40 miles per hour, this bear was in a dead sprint and still keeping up with the vehicle.
It’s just insane…
And perhaps kind of frightening, to watch such a big, powerful beast move that fast. At one point, the bear even seems to hit some deeper water in the ditch, and just plows through it, never breaking stride, barely slowing down… these beasts can truck through water, snow, thick grass and brush like it’s nothing. They can swim, they can run, they can climb trees, they can smell for miles…
Bigger, faster, stronger… they have you beat six ways to Sunday.
