Humans are mammals of the Primate order. The earliest primates evolved about 65 million years ago in the geological period known as the Paleocene epoch. They were small-brained, arboreal fruit eaters, similar to moderntree shrews. Primates of the Eocene epoch (55 to 38 million years ago) were...
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In fact, the human “family tree” may be better described as a “family bush,” within which it is impossible to connect a full chronological series of species, leading to Homo sapiens, that experts can agree upon. (Read T. H. Huxley’s 1875 Britannica essay on evolution & biology.) ...
L. et al. An African American paternal lineage adds an extremely ancient root to the human Y chromosome phylogenetic tree. Am. J. Hum. Genet. 92, 454–459 (2013). Article CAS PubMed PubMed Central Google Scholar Haber, M. et al. A rare deep-rooting D0 African Y-chromosomal ...
The researchers’ method allowed them to reconstruct ancient population dynamics on the basis of genetic data from present-day humans. By constructing a complex family tree of genes, the team was able to examine thefinerbran...
sediba, 2-million-year-old hominins from South Africa, show that they consumed a mostly C3 diet that probably included harder foods, and both dicotyledons (for example, tree leaves, fruits, and wood or bark) and monocotyledons (for example, grasses and sedges); this diet contrasts with ...
This condition is best expressed as asegment of a population-level phylogenetic tree, where such treesrepresent ancestor-descendent series (Hull 1978: 349; de Queiroz 1999:50ff.; 2005). Species, as the point is often put, are historicalentities, rather than kinds or classes (Hull 1978: 338...
This chapter provides an overview of human parasites that infect all regions of the gastrointestinal tract, including the oral cavity, esophagus, stomach, small and large intestine, liver and biliary tree, and anus. The most important human parasites are discussed individually, with an emphasis on ...
There are alternative interpretations of the root of the tree and the position of tree shrews. Reprinted with permission from [2] © 2021 Society for Reproduction and Fertility. The primate order has two major subdivisions: Strepsirrhini and Haplorrhini (Figure 2). The former comprises ...
The complicated tree of human evolution could include extinct species that have not yet been discovered.Smithsonian's Human Origins Program Can the minds of machines teach us something new about what it means to be human? When it comes to the intricate story of our spec...