Extracting aluminum from bauxite ore requires 20 times more energy than extracting it from aluminum from recycled sources so therefore that is a good reason to promote its recycling starting with pop and beer cans which are things that most of us use.
It might be because making it a hybrid could help get nutrition and other things it needs. I don't know exactly though
The notable
hardness of bone is attributed to the presence of inorganic hydroxyapatites.
Due to the calcium salts deposited in it, resulting to the hardness. The
abnormal hardness of bone, which allows it
to resist the compression.