ENDANGERED SPECIES: Heathrow officials seize 13 rare iguanas stuffed in socks Published: Tuesday, February 4, 2014 Customs officers at London's Heathrow Airport seized 13 extremely rare iguanas that had been hidden in socks. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.