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.
Blue whale is not only the largest mammal on earth â¦, but the largest animal of any kind on the earth. Better still, the blue whale, is the largest animal to ever exist on the earth. There are no land mammals that would make the list of the ten largest mammals on earth. But the largest land mammal is the African elephant. But even the mighty elephant is relatively tiny in comparison to the larger species of whales.