A supervolcano is a volcano capable of producing a volcanic eruption with an ejecta mass greater than 1015 kg (1012 t). Supervolcanoes occur when magma in the mantle rises into the crust but is unable to break through it and pressure builds in a large and growing magma pool until the crust is unable to contain the pressure. This can occur at hotspots (for example, Yellowstone Caldera) or at subduction zones (for example, Toba).
Homo habilis. An extinct hominid of the genus Homo that lived between 2.3 and 1.4 million years ago in Africa in the early Pleistocene period. H habilis was short, but had a less protruding face and a higher, rounder and larger brain cavity (Â±650 cc) than Australopithecus (Â±450 cc).
Homo habilis was the earliest of these three hominids and perhaps the most ape-like of them, though it did not stop habilis from being the first known hominid to make and use stone tools. Homo erectus was their later descendant.owever, the three species never interacted. Habilis died out around 1 million years ago. Erectus first appeared at around this time, but died out 70 thousand years ago. There is no known evidence of erectus and sapiens interacting.