A grizzly bear's bite is so strong it can crush a bowling ball.

Scientists like Dr. Brady Barr from National Geographic have used special sensors to measure how hard animals can bite. A grizzly bear can bite down with 1,160 pounds of pressure per square inch. To put that in perspective, a lion bites with about 650 pounds of pressure and a tiger with 1,050 pounds. Since a bowling ball can break under 1,000 pounds of pressure, a grizzly could easily crack one open.The secret to this power is in the bear's head. They have a very wide bone called the zygomatic arch where their huge jaw muscles attach. This setup works like a heavy-duty nutcracker. While big cats have teeth meant for slicing meat, bears have flat, strong back teeth meant for grinding and pulverizing hard objects.A study from the Journal of Zoology in 2012 showed that bear skulls evolved to be strongest at the back of the jaw. This helps them eat tough foods like bone marrow and hard nuts to gain weight before they hibernate for the winter. Their bite is like having the weight of a small car pressing down on a single thumb-sized spot. In the wild woods of Alaska and Yellowstone, this strength makes them one of the most powerful animals on the planet.