RESEARCH BASE

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

3,721 Documents 34 Sections 43,625 Citations 34,852 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.

507 results for "social brain hypothesis" — page 13 of 26

Credible

INTERDOC_41 — NHI Hypotheses: Five Frameworks for Non-Human Intelligence

[KEY FINDING] The NHI question is not "Do they exist?" but "Which framework best explains the reported phenomena?" Five distinct hypotheses have been proposed, each with supporting evidence and critical weaknesses:

non-human intelligence NHI extraterrestrial hypothesis ETH ultraterrestrial interdimensional
Credible

INTERDOC_25 — The Sacred Feminine: Suppression, Survival, and Recovery

Venus figurines — over 200 carved female forms dating from ~40,000–11,000 BCE, found from Western Europe to Siberia — represent the oldest known figurative art tradition. The Venus of Hohle Fels (~40,000 BCE, Germany) is

sacred feminine goddess worship Inanna Isis Asherah matriarchy hypothesis
Verified

INTERDOC_09 — Language-DNA-Migration Triangulation

The last two decades have witnessed a revolution in our understanding of human migration history, driven by the integration of computational linguistics, paleogenomics, and archaeology into a unified analytical framework

linguistic phylogeny archaeogenetics ancient DNA migration Indo-European Bantu expansion
Credible

INTERDOC_04 — Catastrophe-Migration-Civilization Cycle

The archaeological and paleoclimatic record reveals at least five major catastrophe-migration cycles in the last ~75,000 years, each following a recognizable pattern: a sudden environmental shock (volcanic eruption, cosm

Younger Dryas cataclysm migration civilization collapse Bronze Age collapse volcanic winter
ZB_2_12 Verified Ecology & Biology

ZB_2_12 — Biological Scaling and Allometry

Allometry — the study of how biological characteristics scale with body size — reveals some of the most universal quantitative laws in biology. From bacteria to blue whales, spanning 21 orders of magnitude in body mass,

allometry biological scaling metabolic scaling Kleiber's law quarter-power scaling three-quarter power
ZB_2_23 Verified Ecology & Biology

ZB_2_23 — Cephalopod Intelligence and Distributed Cognition

Cephalopods — octopuses, cuttlefish, squid, and nautiluses — represent one of evolution's most extraordinary experiments in intelligence, having diverged from the vertebrate lineage approximately 530 million years ago ye

cephalopod octopus cognition distributed nervous system chromatophore camouflage
ZB_2_25 Verified Ecology & Biology

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

short-chain fatty acids SCFA butyrate propionate acetate gut microbiome
ZB_1_09 Verified Ecology & Biology

ZB_1_09 — Tool Use in Animals

Tool use — defined as the deployment of an external object to alter the form, position, or condition of another object or organism — was once considered uniquely human. Since Jane Goodall's 1960 observation of chimpanzee

tool use animal cognition crow New Caledonian crow chimpanzee orangutan
ZB_1_14 Verified Ecology & Biology

ZB_1_14 — Animal Architecture: Nests, Webs, Mounds, and Biological Engineering

Animal architecture — the construction of physical structures by non-human organisms for shelter, reproduction, thermoregulation, prey capture, mate attraction, or environmental modification — represents one of the most

animal architecture nests spider webs termite mounds beaver dams bowerbird
ZB_1_17 Credible Ecology & Biology

ZB_1_17 — Cognitive Ecology and Animal Decision-Making

Cognitive ecology — the study of how animals' cognitive abilities (perception, learning, memory, decision-making) have been shaped by the ecological challenges they face — bridges behavioral ecology, comparative psycholo

cognitive-ecology animal-decision-making optimal-foraging bounded-rationality heuristics brain-size
ZB_1_13 Verified Ecology & Biology

ZB_1_13 — Sexual Selection and Mate Choice

Sexual selection — first articulated by Darwin (1871) in The Descent of Man, and Selection in Relation to Sex — is the evolutionary process by which traits that increase mating success are favored, even when they decreas

sexual selection mate choice intersexual selection intrasexual competition peacock tail ornament
ZB_1_08 Verified Ecology & Biology

ZB_1_08 — Cephalopod Intelligence and Cognition

Cephalopods — octopuses, squid, cuttlefish, and nautiluses — represent the pinnacle of invertebrate cognitive evolution, having independently evolved complex brains and sophisticated behaviors along a lineage that diverg

cephalopod octopus squid cuttlefish intelligence cognition
ZB_1_05 Verified Ecology & Biology

ZB_1_05 — Parasitism and Host Manipulation: Dark Arts of Evolution

Parasitism — where one organism benefits at the expense of another — is the most common lifestyle on Earth, with parasites outnumbering free-living species in most ecosystems. Among the most remarkable phenomena in biolo

parasitism parasite host manipulation parasitoid zombie behavior Toxoplasma gondii
ZB_5_17 Verified Ecology & Biology

ZB_5_17 — Constructal Law & Flow Architecture: Why Nature Branches the Way It Does

Most fractal descriptions of nature are descriptive: they observe that rivers branch like blood vessels, blood vessels branch like trees, trees branch like lightning bolts, and lightning bolts branch like river deltas. A

constructal law Adrian Bejan flow architecture branching networks Murray's law river delta
ZB_5_10 Verified Ecology & Biology

ZB_5_10 — Disturbance Ecology: Fire, Flood, and Forest Dynamics

Disturbance ecology investigates how natural and anthropogenic perturbations — fire, wind, flood, drought, volcanic eruption, logging, grazing, landslides, and insect outbreaks — influence ecosystem structure, species di

disturbance ecology fire ecology succession intermediate disturbance hypothesis windthrow flood disturbance
ZB_4_04 Verified Ecology & Biology

ZB_4_04 — Flight Evolution

Powered flight has evolved independently at least four times in the history of life — in insects (~350 Ma), pterosaurs (~230 Ma), birds (~150 Ma), and bats (~55 Ma) — making it one of evolution's most spectacular converg

flight evolution powered flight gliding insect wing feathered dinosaur pterosaur
ZB_3_04 Verified Ecology & Biology

ZB_3_04 — Ecological Succession

Ecological succession — the process of community change over time following a disturbance or the creation of new habitat — is one of ecology's oldest and most studied concepts. Primary succession occurs on newly exposed

ecological succession primary succession secondary succession climax community pioneer species sere
ZC_0_00 Social Science

ZC_0_00 — Social Science & Anthropology: Section Summary

ZC_5_00 Social Science

ZC_5_00 — Modern Applied Social Science: Subfolder Summary

ZC_5_20 Credible Social Science

ZC_5_20 — Post-Truth & Misinformation

"Post-truth" — named Oxford Dictionaries' Word of the Year in 2016 and defined as "relating to circumstances in which objective facts are less influential in shaping public opinion than appeals to emotion and personal be

post-truth misinformation disinformation fake news epistemic crisis social media