Title: Human Impacts and Extinction of Freshwater Snails
Air Date: May 11, 2017
Series:Smithsonian Science How webcasts, which are designed to connect natural history science and research to upper-elementary and middle-school students.
This video features Dr. Ellen Strong, a zoologist at the National Museum of Natural History. Learn about the risks faced by snail populations in rapidly-changing freshwater ecosystems. Consider the ecological impacts of human activities such as damming and mining, which supply people with resources. Follow Ellen to freshwater streams around the U.S. as she studies vulnerable snail populations. See how Ellen discovers new species as she races to catalogue the biodiversity of freshwater snails, even as some species are faced with extinction.