Keywords
50-54 years, caucasian ethnicity, close-up, concentration, environment, grass, green, growth, human hand, ideas, looking through an object, male, man, mature adult, microscope, one mature man only, one object, one person, one person only, part of, progress, progression, research, science, scientist, side view, single object, studio shot, vertical, white background, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u10938350