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.
38 results for "definitive host" — page 2 of 2
L_1_01 — Ancient DNA & Population Genetics
Modern paleogenomics has shown that human evolution was shaped by interbreeding, population structure, and repeated demographic turnover rather than a simple single-line progression. Ancient DNA revealed previously unkno
L_1_04 — Archaic Human Species Synthesis
The human evolutionary tree is far more complex than the older linear model suggested. Fossils, ancient DNA, and proteomics now show that Homo sapiens overlapped with several other hominin lineages, including Neanderthal
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_2_12 — Paleogenomics of Africa: The Cradle Revisited
Africa is the cradle of human evolution — the continent where Homo sapiens originated, where the deepest branches of the human family tree diverge, and where the greatest genetic diversity in our species is found. Yet pa
L_2_03 — Ancient African Genetics
Africa harbors the greatest human genetic diversity on Earth — a direct consequence of being the continent of human origin, where populations have accumulated genetic variation for ~300,000+ years. Modern African populat
Y_2_09 — Sleep Paralysis, Hypnagogia, and Liminal States
Sleep paralysis — a temporary inability to move or speak while falling asleep or waking — is one of the most universal and culturally interpreted altered states, experienced by an estimated 7.6% of the general population
H_4_28 — Corporate Knowledge Suppression: Industry Strategies for Concealing Scientific Evidence
Corporate knowledge suppression — the deliberate concealment, distortion, or delayed disclosure of scientific findings by private industry to protect commercial interests — represents one of the most consequential forms
H_4_10 — Corporate Suppression of Science
One of the most systematic and consequential forms of knowledge suppression in the modern era is the deliberate corporate manufacture of scientific doubt to protect profitable but harmful products. The strategy was pione
R_3_05 — Coevolution — Arms Races, Mutualisms, and Red Queens
Coevolution — reciprocal evolutionary change between interacting species — is one of the most powerful engines of biological diversity. Leigh Van Valen's Red Queen hypothesis (1973) captured its essence: species must con
F_2_12 — Saharan Trade Routes: Gold, Salt, and Knowledge Across the Desert
The trans-Saharan trade routes — a network of caravan trails crossing the world's largest hot desert (~9 million km²) between the Mediterranean coast and sub-Saharan West Africa — were among the most important long-dista
ZA_5_03 — Infrasound — Physics, Biological Effects, and Anomalous Phenomena
Infrasound — sound below the conventional human hearing threshold of ~20 Hz — is a pervasive physical phenomenon generated by natural sources (wind, ocean waves, volcanic eruptions, earthquakes, thunderstorms, animal voc
I_1_06 — SETI vs UAP: Scientific Divide
The relationship between SETI (Search for Extraterrestrial Intelligence) and UAP/UFO research represents one of the most striking paradigm divides in modern science. Both fields nominally address the same question — are
I_5_07 — Pre-Modern UAP Accounts — Historical Sightings
Accounts of anomalous aerial phenomena predate the modern UFO era (1947) by millennia. Classical authors including Livy, Pliny the Elder, Plutarch, and Josephus recorded "prodigies" involving shields, spears, and armies
Z_5_11 — Microbiome-Host Coevolution: Holobiont Theory, Gut Ecology, and Metabolic Symbiosis
Microbiome-host coevolution refers to the deep, reciprocal evolutionary relationship between multicellular organisms and the complex microbial communities (bacteria, archaea, fungi, viruses) that inhabit their bodies — p
Q_2_18 — Neutrino Astronomy: Ghostly Messengers from the Cosmos
Neutrino astronomy — the observation of astrophysical sources through their neutrino emission rather than electromagnetic radiation — opened a new window on the universe by detecting particles that can escape from region
ZB_2_25 — Short-Chain Fatty Acids: Microbial Metabolites and Host Signaling
Short-chain fatty acids (SCFAs) — predominantly acetate (C2), propionate (C3), and butyrate (C4) — are the principal metabolites produced by anaerobic bacterial fermentation of dietary fiber in the mammalian colon, reach
ZA_3_05 — Neutrino Physics: Oscillations, Mass, and the Ghost Particle
Neutrinos are the lightest known massive particles, interacting only via the weak force and gravity. Three flavors exist — electron, muon, and tau — and they can transform between flavors as they propagate (neutrino osci
ZA_3_16 — Neutrino Astronomy: Ghost Particles as Cosmic Messengers
Neutrino astronomy — the detection of neutrinos from astrophysical sources — opens a fundamentally new window on the universe, observing objects and processes invisible to electromagnetic radiation. Neutrinos are nearly
BROWSE BY SECTION — 3,721 documents across 34 fields