acquired trait: A phenotypic characteristic, acquired during growth and development, that is not genetically based and therefore cannot be passed on to the next generation (for example, the large muscles of a weightlifter).adaptation: Any heritable characteristic of an organism that improves its ability to survive and reproduce in its environment.Aurignacian culture, in particular, witnesses an explosion of rock art, including the El Castillo cave paintings, the monochrome cave murals at Chauvet, the Lion Man of Hohlenstein-Stadel, the Venus of Hohle Fels, the animal carvings of the Swabian Jura, Aboriginal rock art from Australia, and much more.
Introduction Types Characteristics Dating & Chronology Prehistoric Culture Human Evolution: From Axes to Art Paleolithic Period Lower Paleolithic (c.2.5 million - 200,000 BCE) Middle Paleolithic (c.200,000 - 40,000 BCE) Upper Paleolithic (c.40,000-10,000 BCE) Mesolithic Culture - 10,000 - 4,000 BCE - Northern and Western Europe - 10,000 - 7,000 BCE - Southeast Europe - 10,000 - 8,000 BCE - Middle East and Rest of World Neolithic Culture - 4,000 - 2,000 BCE: Northern and Western Europe - 7,000 - 2,000 BCE: Southeast Europe - 8,000 - 2,000 BCE: Middle East & Rest of World Bronze Age Art (In Europe, 3000-1200 BCE) Iron Age Art (In Europe, 1500-200 BCE)Types Archeologists have identified 4 basic types of Stone Age art, as follows: petroglyphs (cupules, rock carvings and engravings); pictographs (pictorial imagery, ideomorphs, ideograms or symbols), a category that includes cave painting and drawing; and prehistoric sculpture (including small totemic statuettes known as Venus Figurines, various forms of zoomorphic and therianthropic ivory carving, and relief sculptures); and megalithic art (petroforms or any other works associated with arrangements of stones).
Artworks that are applied to an immoveable rock surface are classified as parietal art; works that are portable are classified as mobiliary art.
These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing.
As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.
The age of the fossil must be determined so it can be compared to other fossil species from the same time period.
Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms.
Also used to describe the process of genetic change within a population, as influenced by natural selection.
adaptive landscape: A graph of the average fitness of a population in relation to the frequencies of genotypes in it.
The term can also be applied to larger groups of organisms, as in "the adaptive radiation of mammals." adaptive strategies: A mode of coping with competition or environmental conditions on an evolutionary time scale.
Species adapt when succeeding generations emphasize beneficial characteristics.
For example, based on the primate fossil record, scientists know that living primates evolved from fossil primates and that this evolutionary history took tens of millions of years.