RESEARCH BASE

Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,623 Citations 34,854 Keywords Indexed 4 Evidence Tiers

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.

208 results for "chicken bone DNA" — page 11 of 11

F_3_05 Lost Connections

F_3_05 — Writing System Origins and Independent Inventions

Writing was independently invented at least four times in human history: Sumerian cuneiform in Mesopotamia (~3400 BCE), Egyptian hieroglyphs (~3200 BCE), Chinese script (~1200 BCE with possible earlier precursors), and M

writing systems cuneiform hieroglyphs oracle bones Mesoamerican script Indus script
F_3_09 Verified Lost Connections

F_3_09 — Musical Instrument Diffusion and Shared Traditions

Musical instruments represent some of the oldest artifacts of human culture and their distribution patterns across the globe illuminate deep connections — and sometimes startling independent inventions — among widely sep

musical instrument diffusion drum lyre harp flute
ZA_5_22 Verified Physics & Quantum

ZA_5_22 — Ionizing Radiation: Physics, Biological Effects, and Applications

Ionizing radiation — electromagnetic waves or particles with sufficient energy (>10 eV) to remove electrons from atoms — was discovered in the final years of the 19th century through a rapid sequence of breakthroughs: Wi

ionizing radiation radioactivity alpha particles gamma rays X-rays DNA damage
V_1_18 Credible Mathematics & Information

V_1_18 — Ethnomathematics: Mathematics Across Cultures

Ethnomathematics — the study of mathematical ideas, methods, and practices developed by cultural groups outside the Western academic tradition — was formalized as a field by Ubiratan D'Ambrosio (Brazil, 1985), who argued

ethnomathematics indigenous-mathematics quipu ishango-bone sand-drawing sona
V_2_21 Verified Mathematics & Information

V_2_21 — Topology Applications in Science

Topology — the branch of mathematics concerned with properties preserved under continuous deformation (stretching, bending, twisting, but not tearing or gluing) — has transformed from an abstract mathematical discipline

topology topological invariants Euler characteristic knot theory persistent homology topological data analysis
L_4_00 Genetics & Origins

L_4_00 — Methods Ancient DNA: Subfolder Summary

L_0_00 Genetics & Origins

L_0_00 — Genetics & Human Origins: Section Summary

L_2_00 Genetics & Origins

L_2_00 — Population Regional Genetics: Subfolder Summary