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Human evolution
Human evolution is the part of biological evolution concerning the emergence of humans as a distinct species. It is the subject of a broad scientific inquiry that seeks to understand and describe how ... > more -
Introduction to genetics
Genetics is the study of how living things receive common traits from previous generations. These traits are described by the genetic information carried by a molecule called DNA. The instructions ... > more -
Priapulida
Priapulida are a phylum of marine worms with an extensible spiny proboscis. Priapulid fossils are known at least as far back as the Middle Cambrian. Their nearest relatives are probably Kinorhyncha ... > more -
Precambrian
The Precambrian is an informal name for the eons of the geologic timescale that came before the current Phanerozoic eon. It spans from the formation of Earth around 4500 Ma (million years ago) to the ... > more -
Civilization
The word civilization (or civilisation) has a variety of meanings related to human society. By the most minimal, literal definition, a civilization is a complex society. Technically, anthropologists ... > more -
Paleoclimatology
Paleoclimatology is the study of climate change taken on the scale of the entire history of the earth. Glaciers are a widely employed instrument in paleoclimatology. The ice in glaciers has hardened ... > more -
Structural alignment
Structural alignment is a form of sequence alignment based on comparison of shape. These alignments attempt to establish equivalences between two or more polymer structures based on their shape and ... > more -
Earth Science
Environmental Issues
Global Warming
Geomagnetic Storms
Near-Earth Object Impacts
Anthropology
End of civilization
The end of civilization or the end of the world are phrases used in reference to human extinction scenarios, doomsday events, and related hazards which occur on a global ... > more -
Inca Empire
The Inca Empire was an empire centered in what is now Peru from AD 1438 to AD 1533.The Inca people began as a tribe in the Cuzco area around the 12th century ... > more
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