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Ileum, caecum and colon of rabbit, showing Appendix vermiformis on fully functional caecum The human vermiform appendix on the vestigial caecum. The appendix was once believed to be a vestige of a redundant organ that in ancestral species had digestive functions, much as it still does in extant species in which intestinal flora hydrolyze cellulose and similar indigestible plant materials. [10]
One example of this is a gene that is functional in most other mammals and which produces L-gulonolactone oxidase, an enzyme that can make vitamin C. A documented mutation deactivated the gene in an ancestor of the modern infraorder of monkeys, and apes , and it now remains in their genomes , including the human genome , as a vestigial sequence ...
For example, neutral human DNA sequences are approximately 1.2% divergent (based on substitutions) from those of their nearest genetic relative, the chimpanzee, 1.6% from gorillas, and 6.6% from baboons. [10] [11] Genetic sequence evidence thus allows inference and quantification of genetic relatedness between humans and other apes.
For example, then Peruvian President Alan García claimed in 2007 that uncontacted groups were only a "fabrication of environmentalists bent on halting oil and gas exploration". [19] As recently as 2016, a Chinese subsidiary mining company in Bolivia ignored signs that they were encroaching on uncontacted tribes, and attempted to cover it up ...
The earliest groups of humans are believed to find their present-day descendants among the San people, a group that is now found in western southern Africa. The San are smaller than the Bantu. They have lighter skins, more tightly curled hair, and they share the epicanthal fold with the people of Central and South East Asia.
Painting of Bimbache of El Hierro by Leonardo Torriani, 1592 The San are the oldest inhabitants of Southern Africa. Indigenous communities, peoples, and nations are those which have a historical continuity with pre-invasion and pre-colonial societies that developed on their territories, and may consider themselves distinct from other sectors of the societies now prevailing on those territories ...
History provides many examples of notable diasporas. The Eurominority.eu map (the European Union) Peoples of the World includes some diasporas and underrepresented/stateless ethnic groups. [1] Note: the list below is not definitive and includes groups that have not been given significant historical attention.
A review paper by Melinda A. Yang (in 2022) summarized and concluded that a distinctive "Basal-East Asian population" referred to as 'East- and Southeast Asian lineage' (ESEA); which is ancestral to modern East Asians, Southeast Asians, Polynesians, and Siberians, originated in Mainland Southeast Asia at ~50,000BC, and expanded through multiple ...