Extracting Marrow

Lin Mu took out the six leg bones of the Tyrant Bull and concluded that drilling from the base of the bone would be the best.

It would maintain the bone's integrity and if Lin Mu needed to cut up the bone later for some weapon, it wouldn't come in the way either. Having decided this, Lin Mu picked up the first bone, finding it to be rather heavy.

"This is easily over a thousand kilograms in weight." Lin Mu was surprised by the density of the bone. 

One must know that while large beasts were indeed heavy, their actually mass came from the muscles and organs. Bones themselves only contributed 20-30 percent of the total body weight.

Perhaps only Lin Mu's own bone density could exceed this and that was due to the True Gold Body Forging Arts.

"It'll be this then." Having chosen the spot, Lin Mu next took out a large jade bottle.