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.
1,728 results for "X chromosome" — page 19 of 87
A_4_19 — Maya Codices: Dresden, Madrid, and Paris Manuscripts
The Maya codices are the only surviving pre-Columbian books from the Maya civilization — folding-screen manuscripts made of bark paper (huun) covered in lime plaster and painted with hieroglyphic texts and illustrations
A_4_03 — Popol Vuh: The Maya Book of Creation
The Popol Vuh ("Book of the Community" or "Book of Counsel") is the most important surviving mythological and historical text of the ancient Americas. A K'iche' Maya creation narrative, it was written down in the Latin a
A_4_10 — I Ching (Yijing) — The Classic of Changes
The I Ching (易經, Yìjīng, "Classic of Changes") is one of the oldest continuously used texts in human history, originating from Shang dynasty oracle bone divination (~1200 BCE) and formalized during the Western Zhou perio
A_4_18 — Confucian Analects: Foundations of East Asian Thought
The Analects (Lúnyǔ 論語, "Collected Sayings") is the foundational text of Confucianism, comprising 20 books of aphorisms, dialogues, and biographical fragments attributed to Confucius (Kǒngzǐ 孔子, 551–479 BCE) and compiled
A_4_16 — Tibetan Book of the Dead (Bardo Thodol) and Bon Tradition
The Bardo Thodol (བར་དོ་ཐོས་གྲོལ, "Liberation Through Hearing in the Intermediate State"), popularly known as the Tibetan Book of the Dead, is a collection of funerary texts attributed to the 8th-century Indian master Pa
A_4_14 — Shan Hai Jing (Classic of Mountains and Seas)
The Shan Hai Jing (山海經, "Classic of Mountains and Seas") is one of the most extraordinary texts of the ancient Chinese literary corpus — an encyclopedic compendium of mythological geography, zoology, mineralogy, and cosm
A_3_03 — Egyptian Book of the Dead and Funerary Literature
The Egyptian Book of the Dead (Pert em Hru — "Coming Forth by Day") is a collection of ~200 magical spells, hymns, and instructions designed to guide the deceased through the Duat (underworld) and into eternal life in th
A_3_01 — Kebra Nagast: The Glory of Kings (Ethiopian)
The Kebra Nagast ("Glory of Kings") is a 14th-century CE Ethiopian text — written in Ge'ez, the classical Ethiopian liturgical language — that serves as the foundation myth of the Solomonic dynasty of Ethiopia and the sp
INTERDOC_68 — Entity Categories as Attractors in Consciousness State-Space
A recurring mystery across the corpus: why do DMT users, shamanic practitioners, near-death experiencers, medieval monks, ancient temple visitors, and modern abduction reporters describe the same limited set of entity ty
W_5_25 — Silk Road & Ancient Trade Networks
The Silk Road — a term coined by German geographer Ferdinand von Richthofen in 1877 (Seidenstraße) — refers to the interconnected network of overland and maritime trade routes linking China, Central Asia, the Indian subc
W_5_24 — Civilization Collapse & Systems Fragility
Civilizational collapse — the rapid, significant decline of a complex society's political, economic, and social institutions — is a recurring pattern in human history. Major examples include the Western Roman Empire (476
ZH_1_10 — Transit of Venus: Political Astronomy and Global Science
A transit of Venus — when the planet Venus crosses the disk of the Sun as seen from Earth — is among the rarest of predictable astronomical events, occurring in a pattern of pairs separated by ~8 years, with the pairs se
C_2_16 — Mesoamerican Mythology Beyond Maya and Aztec
Mesoamerican mythology is overwhelmingly studied through the lens of the Maya and Aztec/Mexica — the two civilizations with the most extensive surviving textual and iconographic records. Yet Mesoamerica was a mosaic of d
ZF_2_22 — Hadal Zone & Deep-Sea Trench Ecology
The hadal zone — the deepest region of the ocean, comprising trenches and troughs exceeding 6,000 meters — represents Earth's last great frontier of biological exploration. Named after Hades, the Greek underworld, the ha
ZF_2_20 — Submarine Volcanic Ecosystems
Submarine volcanic ecosystems — biological communities thriving at hydrothermal vents, volcanic seamounts, and submarine caldera environments — represent one of the most profound biological discoveries of the 20th centur
ZF_2_17 — Chemosynthetic Ecosystem Evolution: Life Without Sunlight
Chemosynthetic ecosystems — communities of organisms that derive energy from chemical reactions (primarily the oxidation of hydrogen sulfide, methane, or hydrogen) rather than photosynthesis — represent one of the most t
ZF_3_14 — History of Oceanography: Challenger to Satellites
The history of oceanography traces humanity's evolving understanding of the oceans from ancient seafaring observations to the modern era of satellite remote sensing and autonomous floats. The discipline emerged as a reco
ZF_4_08 — Ocean Acidification Paleoclimate Record
Ocean acidification — the decrease in seawater pH caused by absorption of atmospheric CO₂ — is not only a modern phenomenon but has occurred repeatedly throughout Earth's history, leaving distinctive signals in the geolo
ZF_1_16 — Paleoceanography and Foraminifera: Reconstructing Ancient Oceans from Microfossil Archives
Paleoceanography — the study of the history of the oceans and their role in Earth's climate system through geological time — relies fundamentally on the geochemical analysis of foraminifera (single-celled protists with c
Z_5_12 — Splicing: RNA Processing and Alternative Splicing
RNA splicing — the process by which intervening sequences (introns) are removed from precursor messenger RNA (pre-mRNA) and the remaining sequences (exons) are joined together to form the mature mRNA — is a fundamental s
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