Why are hard body parts more commonly found in the fossil record?

Just wondering

?2015-05-25T13:57:39Z

Soft parts rot and slough off before petrification takes over.
Bone petrifies easily, flesh does not.

Kathy2015-05-25T13:44:29Z

The other body parts are soft and turn to oozzze and drizzle away with rain, winds erosion, edibility. Good old bonz stay and stay.

Al2015-05-25T17:12:59Z

soft body parts rot