Like many children dinosaurs were one of my first interests in science. A recent article in Scientific American describes developments that may be turning away from asteroid collisions as the primary cause of mass extinctions in the past. It looks like the dinosaur die-off at the Cretaceous/Tertiary (K-T) boundary is still strong but other extinctions may be due to changes in ocean chemistry and gas releases.
Past Extinctions and Global Impacts
Todd Suomela
Associate Director for Digital Pedagogy & Scholarship Department
My interests include digital scholarship, citizen science, leadership, and communications.