Science Photos of science in action and the people who perform it. Swabbing on HV agar. Part of bat microbiology research in Walnut Canyon at Carlsbad Caverns National Park. The work performed was under a NPS research permit. Science in action photography: photos showing the act of science as it occurs. Biologist Tammi Duncan checking a culture tube Scientists at work in the lab and field: Environmental portraits of scientists doing what they love.