Animal testing group Huntingdon Life Sciences had its planned New York Stock Exchange (NYSE) listing pulled just 15 minutes before it was due to go ahead. Executives from the UK research group were taken aside by the exchange’s boss and told the listing had been halted. The NYSE is reported to have received calls warning that the exchange could be threatened by animal rights activists opposed to the firm’s debut. Huntingdon quit the London Stock Exchange in 2001 after fierce protests.