The World Wildlife Fund, best known for its efforts to protect the giant panda and other endangered animal species, won a judgment Friday against World Wrestling Federation Entertainment over the use of the initials WWF.

The decision from the High Court in London curtails the ability of the wrestling group to promote itself and will force it to abandon its Web address. The Stamford, Conn.-based company said it would appeal.

Justice Robin Jacob ruled that the wrestling group had breached a 1994 agreement between the two sides that limited its use of the initials.