Toxoplasmosis: morbid attraction to leopards in parasitized chimpanzeesResearchers from the Centre d'Écologie Fonctionnelle et Évolutive (CNRS/Université de Montpellier/Université Paul Valéry Montpellier 3/EPHE) have shown that chimpanzees infected with toxoplasmosis are attracted by the urine of their natural predators, leopards, but not by urine from other large felines.