 She is one of the inventors of XROMM (X-ray Reconstruction of Moving Morphology), a technique for making 3D movies of internal structure that combines CT scanning with biplanar x-ray movies.She is one of the authors of "Great Transformations in Vertebrate Evolution".Brainerd is the Robert P. Brown Professor of Biology professor of Biology and of Medical Science in the Ecology and Evolutionary Biology Department at Brown University, Providence, Rhode Island.