Speciation is the process by which two gene pools, say X and Y, derived from an ancestral pool, say Z, acquire species-specific genes that keep them from interbreeding. The ancestral species may persist, so that speciation may simply involve the divergence of a new species, say X, from the ancestral one, Z.

2016年6月29日 · We review human-mediated speciation, compare speciation and known extinctions, and discuss the challenges of using net species diversity as a conservation objective. Humans drive rapid evolution through relocation, domestication, hunting and novel ecosystem creation—and emerging technologies could eventually provide additional mechanisms.

Like most areas of Evolutionary Biology, research related to the formation of new species - 'speciation ' - is rich in historical and current debate. Here, we review both early and modern views...

Speciation ( Source – Encyclopedia Brittanica) The formation of new species from the existing species is called as speciation. Here, a single evolutionary lineage splits up into two or more genetically independent lineages. The occurrence of speciation is due to the following reasons:

Understand Speciation (Divergent & Transformation) & how it led to Human Evolution. Explore Evidences & Fossil Record.

Human evolution is considered from the perspective of the recognition concept of species, which views species as an epiphenomenon of shared fertilisation systems in sexually reproducing organisms. It is argued that this concept predicts the controversial pattern of punctuated equilibrium, and offers an understanding of the hominid fossil ...

2006年5月17日 · Human–chimpanzee genetic divergence varies from less than 84% to more than 147% of the average, a range of more than 4 million years. Our analysis also shows that human–chimpanzee speciation...

2006年7月21日 · We can infer that culture was an important factor in human speciation, in the differentiation from non-human forms. It could have played different biological roles in different time periods: in isolation from non-human primates at the dawn of humanity and in slowing down and hindering the processes of speciation after the appearance of man.

2014年12月15日 · Since we homo sapiens (and all other species) are continuously evolving, are humans undergoing speciation based on our environment? OR has there been any difference across people that could say speciation has already happened?

2016年6月29日 · We review human-mediated speciation, compare speciation and known extinctions, and discuss the challenges of using net species diversity as a conservation objective. Humans drive rapid evolution through relocation, domestication, hunting and novel ecosystem creation-and emerging technologies could eventually provide additional mechanisms.