doi:10.2139/ssrn.2939996A number of recent articles have appeared on the hominin Denisova fossil remains. Many of them focus on attempts to produce DNA sequences from the extracted samSocial Science Electronic Publishing
there are more than two million known species, which are widelydiversein size, shape, and way of life, as well as in the DNA sequences that contain their genetic information. What has produced the pervasive genetic variation within natural populations and the genetic differences among species?
Change or adjustment in structure or habits by which a species becomes better able to function in its environment, occurring through the course of evolution by means of natural selection. Variation The existence within a species or other group of organisms of differences in form, function, or beh...
wishing to bring the study ofhomininsinto line with that of othermammals, prefer to assign toH. sapiensonly those fossil forms that fall within the anatomic spectrum of the species as it exists today. In this sense,H. sapiensis very recent, having originated inAfricamore than 315,000 years ...
-species -diverse -Darwin -evolution -mechanism -evolution -natural selection -true ___ ___ requires three things: all organisms produce far more ___ than can ___; all organisms ___ within the population; and some of this ___ is ___; on average, some offspring are better ___...
A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized. By Fisher’s argument, it should still pay a female to produce equal numbers of sons and daughters. Hamilton, noting that the eggs develop within their host--the larva of ...
Cumulative cultural evolution, the accumulation of sequential changes within a single socially learned behaviour that results in improved function, is prominent in humans and has been documented in experimental studies of captive animals and managed wild populations. Here, we provide evidence that cumulati...
Sexually selected male traits were subsequently lost in some species within two of these three lineages. We conclude that the weight of the evidence argues that how females provision their young shapes the evolution of male mating strategies. Speciation rate From the female perspective, Zeh and Zeh...
If they are indeed a distinct species, they constitute yet another archaic human (in addition to H. neanderthalensis, the Denisovans [known from remains from Denisova Cave in Russia], and perhaps H. erectus) that lived contemporaneously with modern humans during the Late Pleistocene....
3). The degree of change of niche marginality and the loss of suitable climatic conditions within the species’ current range depend on the severity of predicted climate change, a pattern seen in many other species (Fig. 3b versus Fig. 3c and Fig. 3d versus Fig. 3e; see also Appendices ...