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Free Picture: Olfactometer

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Description Peggy Greb photograph of entomologist Donald Barnard demonstrates the attraction of female yellowfever mosquitoes to his hand in an olfactometer. The olfactometer contains a screen separating the attractant (in this case, his hand) from the mosquitoes.
Keywords attractant, caucasian, caucasian man, caucasians, department of agriculture, donald barnard, entomologist, entomologists, entomology, lab research, man, men, mosquitoes, olfactometer, one man, one person, people, person, research, science, united states department of agriculture, us department of agriculture, usda lab research, yellowfever mosquitoes, usda, free photography, free photo, free photos, free picture, free pictures, free image, free images
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