"Antlers are considered one of the most exaggerated cases of male secondary
sexual traits in the animal kingdom, and grow faster than any other mammal bones.
Growth occurs at the tip, and is initially cartilage, which is mineralized to become bone."
If we could figure out a way to artificially growing bone at a rate such as antlers and replace
it for weaker metals, saving minerals and salaries for extracting them. This could potentially
save millions of dollars and be another way of our nation going green. Being used for ages
for similar uses as metals, I'm surprised that there hasn't been research for finding a means to
grow bone artificially.
The major thing here is doing it within a budget, so that the research doesn't go over the price
of mining the materials. Also, to preserve the means of it being green.
Hall, Brian K. (2005), "Antlers", Bones and Cartilage: Developmental and Evolutionary Skeletal Biology, Academic Press, pp. 103–114, ISBN 0-12-31906-06, retrieved 2010-11-08
think how we could utilize this rapid bone growth.