(S (S (BASENP (DT The) (NN discovery)) (VP (VBD was) (VP (VBN made) (PP (IN by) (NP (BASENP (NNS researchers)) (PP (IN from) (NP (NP (BASENP (DT the) (NNP World) (NNP Wide) (NNP Fund)) (PP (IN for) (BASENP (NNP Nature)))) (PRN (LRB -LRB-) (BASENP (NNP WWF)) (RRB -RRB-))))))))) (PERIOD .))