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Cast of Isotelus rex, the largest known trilobite from the middle to upper Ordovician of North Ameri
The internal structures of the outer, middle, and inner ear.
In middle childhood, children spend increasing amounts of time with peers and friends.
Under what conditions can the transition to middle school be associated with declines in grades and ...
Men and women report having fewer days with stressors as they go from middle to older adulthood, and ...
Middle eastern kobab