This is the latest in a series of drawings by artist Becky Moon, about her favorite Ig Nobel Prize winners. (This one also harmonizes with the Halloween season.)
This one celebrates the Ig Nobel Nutrition Prize that was awarded in the year 2017 to Fernanda Ito, Enrico Bernard, and Rodrigo Torres, for the first scientific report of human blood in the diet of the hairy-legged vampire bat
The documented that research in the study “What is for Dinner? First Report of Human Blood in the Diet of the Hairy-Legged Vampire Bat Diphylla ecaudata,” Fernanda Ito, Enrico Bernard, and Rodrigo A. Torres, Acta Chiropterologica, vol. 18, no. 2, December 2016, pp. 509-515.