👉 A crackjaw is a type of jawbone that grows rapidly in size during development. These bones are typically found in animals, particularly primates and birds, but they can also be found in humans. The growth rate of crackjaw may vary depending on factors such as genetics, nutrition, and environmental conditions. Crackjaw is often associated with the development of certain diseases or disorders, such as muscular dystrophy and osteoporosis.
