HANK MORGAN / SCIENCE PHOTO LIBRARY HANK MORGAN / SCIENCE PHOTO LIBRARY
Fresh cow blood is poured into Artificial Dog equipment, an artificial environment designed for breeding fleas used in the study of transmissible diseases, allergies, and in the development of insecticides. This equipment, developed by Jay Georgi, Professor Emeritus at Cornell University, eliminates the need to use live laboratory animals as hosts for fleas.
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