David Dausey. David J. Dausey is an epidemiologist, professor and academic administrator. He is currently the Provost and Vice President for Academic Affairs at Mercyhurst University in Erie, Pennsylvania. He is also a Distinguished Service Professor of Health Policy and Management at Carnegie Mellon University in Pittsburgh, Pennsylvania.
First creature to walk on land 'dragged itself along' on two feet - like it was on crutches. One of the first creatures to walk on land didnât scamper gracefully out of the waves. Instead, the creature, known as Ichthyostega, would have hauled itself up on its front limbs like it was on crutches.
Apatosaurus Apatosaurus giant herbivorous sauropod dinosaur, one of the largest land animals of all time, that lived between 147 million and 137 million years ago during the Late Jurassic and Early Cretaceous periods. Its fossil remains are found in North America...