Telor
Well, eating and testing things is necessary.
*shrugs*
I take my mum's point of view; if it's not neccessary to test it, then we don't use animals, ie; cosmetics.
Eating is rather a different issue, as animals eat each other, and it's a quick and hopefully painless death.
Wearing stuff... depends. If you're killing endangered animals for it, then no. If they're kept horribly, then no. If they're killed by some eskimo tribe for the food, then the skin used for other stuff, I see no problem in that. (And they couldn't live of plants
xd )
And testing for life saving drugs... in some ways, it is neccessary. In others... should we be messing with nature? Should we use the knowledege we have to further it?