Browse Reference Articles
71 to 80 of 132 articles
-
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 -
Indigenous peoples of the Americas
The term indigenous peoples of the Americas encompasses the inhabitants of the Americas before the arrival of the European explorers in the 15th century, as well as many present-day ethnic groups who ... > more -
Evolution of the eye
The evolution of the eye has been a subject of significant study, as a distinctive example of a homologous organ present in a wide variety of species. The development of the eye is considered by most ... > more -
Plate tectonics
Plate tectonics is a theory of geology developed to explain the phenomenon of continental drift and is currently the theory accepted by the vast majority of scientists working in this area. In the ... > more -
Convergent evolution
In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar ... > more -
Charles Darwin
Charles Robert Darwin (12 February 1809 - 19 April 1882) was a British naturalist who achieved lasting fame by convincing the scientific community of the occurrence of evolution and proposing the ... > more -
Archaeological field survey
Archaeological field survey is the methodological process by which archaeologists (often landscape archaeologists) collect information about the location, distribution and organisation of past human ... > 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
Search ScienceDaily
Number of stories in archives: 137,427

