In spite of its widespread distribution, the Southeastern Shrew remained very poorly known until a new trapping method, the pitfall trap, came into use in the 1970s and 1980s. Pitfall traps are traps sunk into the ground: small mammals fall into them and cannot escape. Learn more about the Sorex longirostris, more commonly known as a Southeastern Shrew, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.