Hi Liza N,
I really don't know if it's true I was just quoting the website I found it on. We don't have PETA in the UK (to my knowledge). Thank God. We do have our share of nutters though. Some years ago one lot firebombed a dept store near my hometown because they were selling furs. The store burned to the ground. Fortunatly it was at night and no one was killed.
Here the RSPCA also kills healthy pets if it cannot find a home for then within a given time. It uses electrocution - cheaper than an injection.