RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
137 results for "West African introgression" — page 5 of 7
L_1_03 — Mitochondrial Eve, Y-Chromosomal Adam & Population Origins
Mitochondrial Eve and Y-chromosomal Adam are the most recent common ancestors of all living humans along strictly maternal and strictly paternal lines. They were not the first woman and man, were not a couple, and do not
L_1_08 — Denisovans — Archaic Hominin Deep Dive
Denisovans are an extinct group of archaic hominins identified primarily through ancient DNA analysis rather than traditional fossil morphology — making them history's first hominins to be discovered by genetics. In 2010
L_1_16 — Denisovan Genetics and Legacy
The Denisovans — an extinct group of archaic humans first identified in 2010 from ancient DNA extracted from a finger bone fragment found in Denisova Cave, Altai Mountains, Siberia (~41,000 years old) — represent one of
L_2_07 — European Genetics and Three Ancestral Populations
The genetic history of Europe has been revolutionized by ancient DNA, revealing that most present-day Europeans can be modeled at a broad level as mixtures of three major ancestral components assembled over the past ~10,
L_3_18 — Horizontal Gene Transfer in Eukaryotes
Horizontal gene transfer (HGT) — the movement of genetic material between organisms through mechanisms other than vertical parent-to-offspring inheritance — was long considered a predominantly prokaryotic phenomenon, cen
L_5_11 — Genetics of Altitude Adaptation: Tibet, Andes, Ethiopia
High-altitude adaptation represents one of the most dramatic and best-studied examples of natural selection in contemporary human populations. More than 140 million people worldwide live at elevations above 2,500 meters,
H_1_13 — Knowledge Loss in the Fall of Rome and Early Middle Ages
The collapse of the Western Roman Empire (conventionally dated to 476 CE, though the decline was a process spanning the 3rd–6th centuries) produced one of the most dramatic and well-documented episodes of knowledge and t
P_3_08 — Pragmatism — American Philosophy
Pragmatism is the most distinctive American contribution to philosophy, originating in the 1870s with Charles Sanders Peirce (1839–1914), developed by William James (1842–1910), and extended by John Dewey (1859–1952). It
P_5_08 — Philosophy of History
Philosophy of history asks whether history has a pattern, direction, or meaning — and how historical knowledge itself is possible. Two broad orientations have competed since antiquity: cyclical views (civilizations rise
ZE_3_18 — Frontier Ethics Survey
Frontier ethics examines the moral dimensions of technologies and practices at the edge of current scientific capability — where regulatory frameworks, ethical traditions, and public understanding lag behind technologica
ZE_2_02 — Prophecy, Divination, and Oracular Traditions
Divination — the practice of obtaining knowledge of the unknown (future, hidden, distant) through non-ordinary means — is arguably the most universal religious/intellectual practice in human history. Every documented civ
ZE_2_09 — Philosophy of Sovereignty
Sovereignty — the concept of supreme authority within a territory — has undergone radical transformation from its theological origins to contemporary debates about humanitarian intervention, indigenous self-determination
R_3_02 — Horizontal Gene Transfer in Complex Life
For decades, the "tree of life" was the central metaphor of evolutionary biology — species branching neatly from common ancestors through vertical gene transmission (parent to offspring). This metaphor is now BROKEN, at
R_2_03 — Neanderthal Cognition and Interbreeding
For over a century, Neanderthals were depicted as brutish, cognitively inferior "cave men" — a failed evolutionary experiment replaced by superior modern humans. This narrative has been DEMOLISHED by 21st-century genetic
F_2_17 — Trans-Saharan Rock Art Corridors: Mobility Evidence in Stone
The Sahara Desert — today the world's largest hot desert (~9.2 million km²) and one of Earth's most formidable barriers to human movement — was, during recurring humid periods (the "Green Sahara" or "African Humid Period
F_4_09 — The Green Sahara — When the Desert Was Eden
For most of the last several thousand years, the Sahara has been the world's largest hot desert — 9.2 million km² of arid wasteland. Yet between approximately 11,000 and 5,000 years ago, during the period known as the Af
F_4_19 — Denisovan Legacy in Island Southeast Asia and Melanesia
The Denisovans — an archaic hominin group identified in 2010 from ~41,000-year-old fossils found in Denisova Cave (Altai Mountains, Siberia) — left a striking and disproportionate genetic legacy in the populations of Isl
F_4_01 — Atlantis
Atlantis is the most famous lost-civilization tradition in the Western world — a powerful island empire described by Plato in two dialogues (~360 BCE) that was destroyed by the gods and "swallowed up by the sea" in a sin
I_3_01 — Military UFO/UAP Encounters: Case Catalog
This document catalogs the most significant military and multi-witness UAP encounters from 1944 to the present, rated individually using the 5-tier system. The catalog includes 23 primary cases spanning 12 countries, wit
I_5_13 — UAP Debunking and Skeptical Analysis — Identified Cases
UAP skepticism and debunking — the systematic investigation and identification of prosaic explanations for reported unidentified aerial phenomena — is an essential counterbalance to the UAP discourse and has successfully
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