If a grizzly bear attacks you, your response depends on one critical distinction: is the bear defending itself, or is it hunting you? A defensive grizzly, one that charges because you surprised it or got too close to its cubs, calls for a completely different strategy than a bear that has been stalking you as prey. Getting this right can save your life.
Make Sure It’s Actually a Grizzly
Your survival strategy hinges on correctly identifying the bear, so knowing the difference between a grizzly and a black bear matters. Grizzlies have a prominent shoulder hump visible in profile, which black bears lack. Their ears are smaller and more rounded, while black bears have larger, pointed ears. Grizzly claws are 3 to 4 inches long and gently curved, compared to the shorter 1 to 2 inch, tightly curved claws of a black bear. Color alone is unreliable: black bears can be brown, cinnamon, or even blonde, and grizzlies range from dark brown to light tan.
Before an Attack: Distance and Calm
Most grizzly encounters never become attacks. The U.S. Fish and Wildlife Service recommends staying at least 100 yards (about the length of a football field) from any bear. If you spot a grizzly at a distance, detour widely or back away slowly. Speak in a calm, low voice so the bear knows you’re human and not prey.
Never run. Bears can sprint at 35 miles per hour, easily outpacing any human. Running triggers a chase instinct, turning a bear that might have ignored you into one that pursues you. If the bear hasn’t noticed you, quietly leave the area. If it has noticed you but isn’t approaching, stand still, speak calmly, and slowly back away while avoiding direct eye contact.
Defensive Attack: Play Dead
Most grizzly attacks are defensive. The bear was surprised at close range, is protecting cubs, or is guarding a food source like a carcass. You’ll often recognize a defensive bear by its body language: it may huff, pop its jaws, swat the ground, or bluff charge before making contact. It doesn’t want to eat you. It wants you to stop being a threat.
If a defensive grizzly makes contact, play dead. Drop to the ground face down, spread your legs slightly to make it harder for the bear to flip you over, and clasp your hands behind your neck to protect it. Keep your backpack on if you’re wearing one, as it provides an extra layer of protection for your back and spine. Stay in this position and stay silent. The bear will typically investigate you, possibly swat or bite, and then leave once it decides you’re no longer a threat.
Do not get up immediately. Grizzlies often linger nearby and will return if they see you move. Wait several minutes after the bear appears to have left before slowly, quietly getting up. If the attack continues for more than a couple of minutes and the bear seems to be feeding rather than defending, the situation has shifted to predatory. At that point, you need to fight.
Predatory Attack: Fight Back
Predatory attacks are rarer but far more dangerous. A bear exhibiting predatory behavior will follow you silently, circle you, or approach with a fixed, deliberate focus. It won’t huff or bluff charge. It’s calm, intent, and treating you as food. This can happen day or night, though nighttime attacks on tents are more likely to be predatory.
Do not play dead with a predatory bear. Playing dead gives it exactly what it wants. Instead, fight back with everything available: rocks, sticks, trekking poles, a knife, your fists. Aim for the bear’s face, nose, and eyes. Yell aggressively. Make yourself appear as large and dangerous as possible. The goal is to convince the bear that you are not easy prey and that the cost of attacking you outweighs the reward. The Wyoming Game and Fish Department advises standing your ground, never backing away, and using aggressive body language including loud, firm yelling.
How to Use Bear Spray
Bear spray is the single most effective tool for stopping an attack. A study analyzing encounters across Alaska found that red pepper spray stopped aggressive brown bear behavior 92% of the time, and 98% of people carrying bear spray were uninjured after close-range encounters. Those numbers are remarkably high, and notably, the three injuries that did occur in the study were minor enough that no one needed hospitalization.
Look for canisters labeled “Bear Spray” or “Bear Deterrent” with an EPA registration, containing 1 to 2% capsaicin, and a spray range of at least 25 feet. Carry it in a hip holster or chest harness where you can grab it in seconds, not buried in your pack.
When a charging bear reaches 20 to 30 feet away, give a 1 to 2 second blast aimed slightly downward so the spray creates a cloud the bear runs through. Pay attention to wind direction and try to spray downwind. Even a small amount of blowback can impair your vision and breathing, which is the last thing you need during a charge. If the bear keeps coming, spray again in short bursts. Bear spray canisters typically empty in 5 to 9 seconds of continuous spraying, so use controlled bursts rather than holding the trigger down.
If You or Someone Is Injured
Bear attacks commonly cause deep lacerations and puncture wounds to the head, face, arms, and upper body, since people instinctively shield themselves with their hands and arms. Bleeding can be severe. Your first priority is stopping blood loss by applying direct pressure with any clean cloth, a shirt, a bandana, whatever you have.
Once bleeding is controlled, wash any wounds with mild soap and running water if you have access to it, rinsing for 3 to 5 minutes. Puncture wounds from bites carry a high infection risk because bacteria get pushed deep into tissue. Apply antibacterial ointment if available and cover wounds with a sterile bandage or the cleanest material you can find. Then get to medical care as quickly as possible.
Even wounds that look manageable need professional evaluation within 24 hours. Bear bites can damage deeper structures that aren’t visible on the surface, and infections from animal bites escalate quickly without proper treatment. Medical teams will assess whether you need prophylaxis for tetanus and rabies, particularly if the bear’s health status is unknown, which it almost always is in a wild encounter.
Reducing Your Risk in Bear Country
The best bear attack strategy is never being in one. Make noise while hiking, especially near streams, dense brush, or blind corners where a bear might not hear you coming. Travel in groups of three or more when possible, as attacks on groups are exceedingly rare. Store food in bear canisters or hang it from a tree at least 100 yards from your campsite. Cook and eat the same distance away from where you sleep.
Check with the nearest visitor center or backcountry office when entering a national park or forest. Recommendations vary by location based on local bear behavior, trail closures, and recent sightings. Some parks require bear canisters, some restrict certain trails during peak bear activity, and some have specific rules about carrying bear spray. A five-minute stop at a ranger station can give you information that changes how you plan your route.