Global Ag Media provides a knowledge sharing platform offering premium news, analysis and information resources for the global agriculture industry. Improving zoo nutrition is especially important for species, like the black rhinoceros, that are at risk of extinction in the wild, in this case because of poaching in Africa. ”This is imperative for the survival of the species,” said Dr. Dierenfeld, who, as one of only three zoo nutritionists in the country with Ph.D.’s, is a leader in the fledgling