• Long-Distance Distress Signal from Periphery of Injured Nerve Cells Begins with Locally Made Protein

    July, 30, 2012

    When the longest cells in the body are injured at their farthest reaches, coordinating the cells’ repair is no easy task. This is in part because these peripheral nerve cells can be extremely long – up to one meter in adult humans – which is a lot of distance for a molecular distress signal to cover in order to reach the “command center” of the cell’s nucleus.


  • Private Landowners Can Help Protect Biodiversity Arks in the Tropics

    July, 27, 2012

    Many of the world’s tropical protected areas are struggling to sustain their biodiversity, according to a study just published in Nature by more than 200 scientists from around the world.


  • Milestone For WINS

    July, 23, 2012

    2012 marks a milestone in the Academy’s acclaimed Women In Natural Sciences program. It was 30 years ago that the Academy began offering free summer science classes to Philadelphia public high school girls from low-income, single-parent, minority families. The goal was to nurture their interest in science with the hope they would continue on to higher education and careers in the sciences, at a time when opportunities for women in those positions were woefully few.


  • Unanswered Questions

    July, 20, 2012

    It's almost a given in science: the attempt to answer one scientific question sparks other questions to pop up along the way. That was the scenario for Academy of Natural Sciences of Drexel University scientists Paula Zelanko and Nate Rice, who recently launched a study to measure levels of carbon and nitrogen in feathers of the osprey (Pandion haliaetus) from the Academy’s collection to track changes in the environmental health of the Delaware Watershed.


  • Rising Heat at the Beach Threatens Largest Sea Turtles, Climate Change Models Show

    July, 3, 2012

    For eastern Pacific populations of leatherback turtles, the 21st century could be the last. New research suggests that climate change could exacerbate existing threats and nearly wipe out the population. Deaths of turtle eggs and hatchlings in nests buried at hotter, drier beaches are the leading projected cause of the potential climate-related decline, according to a new study in the journal Nature Climate Change by a research team from Drexel University, Princeton University, other institutions and government agencies.