Be prepared for more than breathtaking views on your national park adventures.

U.S. national parks are stunning havens for wildlife, but they’re also home to some dangerous animals. While exploring the pristine landscapes, visitors may unknowingly wander into the territories of creatures that demand respect and caution. From predators to venomous species, staying informed about these animals can make the difference between an awe-inspiring trip and a perilous encounter.
Here are 11 of the most dangerous animals to watch out for in U.S. national parks.