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Late Pleistocene in northern Spain, by Mauricio Antón.Left to right: wild horse; woolly mammoth; reindeer; cave lion; woolly rhinoceros Mural of the La Brea Tar Pits by Charles R. Knight, including sabertooth cats (Smilodon fatalis, left) ground sloths (Paramylodon harlani, right) and Columbian mammoths (Mammuthus columbi, background)
A supervolcano is a volcano that has had an eruption with a volcanic explosivity index (VEI) of 8, [1] the largest recorded value on the index. This means the volume of deposits for such an eruption is greater than 1,000 cubic kilometers (240 cubic miles).
The first specimen of Megatherium was discovered in 1787 on the bank of the Luján River in what is now northern Argentina. The specimen was then shipped to Spain the following year wherein it caught the attention of the French paleontologist Georges Cuvier , who named the animal in 1796 and was the first to determine, by means of comparative ...
Stonehenge is a prehistoric megalithic structure on Salisbury Plain in Wiltshire, England, two miles (3 km) west of Amesbury.It consists of an outer ring of vertical sarsen standing stones, each around 13 feet (4.0 m) high, seven feet (2.1 m) wide, and weighing around 25 tons, topped by connecting horizontal lintel stones, held in place with mortise and tenon joints, a feature unique among ...
In a landmark paper published in 1982, Jack Sepkoski and David M. Raup identified five particular geological intervals with excessive diversity loss. [2] They were originally identified as outliers on a general trend of decreasing extinction rates during the Phanerozoic, [3] but as more stringent statistical tests have been applied to the accumulating data, it has been established that in the ...
A massive hotspot, larger the Earth’s Lake Superior, can be seen just to the right of Io’s south pole in this annotated image taken by the JIRAM infrared imager aboard NASA’s Juno on Dec. 27 ...
The youngest of the hotspot calderas, the Yellowstone Caldera, formed 640,000 years ago and is about 34 miles (55 km) by 45 miles (72 km) wide. Non-explosive eruptions of lava and less-violent explosive eruptions have occurred in and near the Yellowstone Caldera since the last super eruption.
If you prefer to watch the Mega Millions drawing on the internet, you can visit the official Mega Millions website, where the drawing is streamed live every Tuesday and Friday at 11 PM ET. Watch ...