Why are bones brittle outside of the body?

Bones are not brittle outside of the body. In fact, they are quite strong and can withstand a lot of force. However, when they are removed from the body, they do become more brittle and can break more easily. This is because the bones are no longer supported by the muscles and tissues that surround them, and they are also exposed to the elements, which can cause them to dry out and become weaker.