Beside loss of habitat, poachers have nearly caused tigers to be extinct in the wild.what a shock that the chinese first came up with this 1000 years ago considering that they grind up the private parts of wild animals for aphrodisiac effect.
of note , someone called these people pushers -- to be politically correct they should be referred to as "unlicensed pharmacists" much in the same way that illegal aliens are called "undocumented workers."