ancestor group
31Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
32Human evolution — This article is about the divergence of Homo sapiens from other species. For a complete timeline of human evolution, see Timeline of human evolution. Reconstruction of Homo heidelbergensis which may be the direct ancestor of both Homo… …
33Clade — For other uses, see Clade (disambiguation). Cladogram (family tree) of a biological group. The red and blue boxes represent clades (i.e., complete branches). The green box is not a clade, but rather represents an evolutionary grade, an incomplete …
34Polyphyly — In phylogenetics, a taxon is polyphyletic (Greek for of many races ) if the trait its members have in common evolved separately in different places in the phylogenetic tree. Equivalently, a polyphyletic taxon does not contain the most recent… …
35Debate about Cambrian Lophotrochozoans — Since 1990 there has been intense debate among paleontologists about the evolution in the Early Cambrian period of the super phylum Lophotrochozoa, which is thought to include the modern molluscs, annelid worms and brachiopods, as well as their… …
36lizard — /liz euhrd/, n. 1. any of numerous scaly reptiles of the suborder Sauria, order Squamata, typically having a moderately elongate body, a tapering tail, and two pairs of legs held outward from the body, comprising mostly terrestrial and burrowing… …
37art, African — ▪ visual arts Introduction the visual arts of native Africa, particularly sub Saharan Africa, including such media as sculpture, painting, pottery, rock art, textiles, masks, personal decoration, and jewelry. For more general… …
38pre-Columbian civilizations — Introduction the aboriginal American Indian (Mesoamerican Indian) cultures that evolved in Meso America (part of Mexico and Central America) and the Andean region (western South America) prior to Spanish exploration and conquest in the 16th …
39Family name — Last name redirects here. For the song, see Last Name. Family name Frankenstein, an example of compound German family names which were typical for Jews (New Jewish Cemetery, Prague) A family name (in Western contexts often referred to as a last… …
40Y-chromosomal Aaron — is the name given to the hypothesised most recent common ancestor of many of the patrilineal Jewish priestly caste known as Kohanim (singular Kohen , Cohen , or Kohane). In the Torah, this ancestor is identified as Aaron, the brother of Moses.… …
