Continental drift is created at spreading centers, and this, along with subduction, drives the system of plates in a chaotic manner, resulting in continuous orogeny and areas of isostatic imbalance. The theory of plate tectonics explains all this, including the movement of the continents, better than Wegener's theory. Hans Stille and Leopold Kober opposed the idea of continental drift and worked on a "fixist" geosyncline model with Earth contraction playing a key role in the formation of orogens. Other geologists who opposed continental drift were Bailey Willis, Charles Schuchert, Rollin Chamberlin and Walther Bucher. In 1939 an international geological conference was held
Drift whale whale is no longer a benefit to a community, but an expensive disadvantage. Many cetacean species have been documented as drift whales, but some are more common than others. In New England, for example, the carcasses of fin, humpback, sperm, right, and pilot whales, as well as dolphins, are most likely to drift ashore. Some species have a naturally high buoyancy, and float when they are dead, aided by the gases of putrefaction. Whales that live in the pelagic ocean, far from the continental shelf, are less likely to wash up ashore than coastal species. Once these deep-sea animals do