Yes, Tanuki is correct. Tusks are different to horns.
However, I totally agree that it is wrong to kill an animal just so that you can play music on thier bones.
From:
http://www.auduboninstitute.org/media/e ... 0Horns.doc
Here is the deffinition of the word "horn".
Horns are bone overlaid with keratin, the protein that forms fingernails. Horns are permanent; antelopes, sheep, bison, cattle, and goats have them. Both males and females usually have horns, though there is often sexual dimorphism (physical differences) between the genders.
Yes, the word "bone" was in there, however in the rhino section it says...
[Rhino horn is] compressed hair - not horn at all. It grows throughout the rhino’s life.
So it looks like rhino "horn" is not really a horn, even though that is what it is commonly known as.
Further down it says:
the horns grow back
Unfortunetly, many poachers will still kill a rhino for its horn, because I suppose removing a horn from a dead rhino is easier than removing one from a live one. However the actual
removal of the horn itself does not hurt the rhino.