How are pit bulls so strong?

Pit bulls are strong due to their muscular build, which is a result of selective breeding for traits such as strength and endurance. Their physical attributes include a broad head, powerful jaws, and a sturdy body, all contributing to their strength. Additionally, their high energy levels and athleticism play a role in their overall physical capabilities. It's important to note that, like any breed, individual strength can vary based on genetics, training, and care.