How the polar vortex produced rapid evolution in lizards
A surgical technique designed to preserve proprioceptive signals after amputation should allow patients to sense the location of their prostheses, feedback that is often compromised by convential surgery.
Crimson tide: Senior defensive back Tobe Eziokoli (26), senior quarterback Joe Viviano (4), junior defensive tackle Scott Garrison (74), senior offensive lineman DJ Mott (71) and junior running back Noah Reimers (24) got a running start on Harvard's 144th football season. Photograph by Gil Talbot/Harvard Athletic Communications
Findings suggest a lack of faith in Harvard’s administration
The use of mobile phone data (left) proved more accurate for estimating the spatial spread of dengue fever than a traditional diffusion model (right). Graphic from Impact of human mobility on the emergence of dengue epidemics in Pakistan, published by PNAS
A School of Public Health study uses cell-phone records to predict the spread of dengue fever.
Among the contributors (clockwise from top left): Ellen Chubin Epstein, Adam Fratto, Renee Covi, Steven Erlanger, Lina S. Scroggins, Lynda Cohen Loigman, Viet D. Dinh, and Susan D. Wojcicki Photographs provided by the subjects
Fossil river deltas on Mars, such as this one in Eberswalde Crater, bear many similarities to river deltas on Earth. Such features suggest that Mars once had flowing liquid water on the surface, motivating study of the planet’s early climate.
Photograph by NASA/JPL/Malin Space Science Systems