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.

990 results for "rat learning" — page 27 of 50

Verified

INTERDOC_65 — The Constants of Existence: A Cross-Domain Architecture

[KEY FINDING] The universe appears to run on approximately 30 physical constants (CODATA 2022), none of which are derived from theory. Life on Earth obeys approximately 12 biological constants (genetic code, ATP, homochi

fundamental constants fine-tuning biological constants mathematical constants cross-domain synthesis Kleiber's law
Credible

Mind_Body_Healing_Frontier

The scientific investigation of mind-body interactions has progressed from fringe speculation to a major research domain supported by institutional infrastructure (National Center for Complementary and Integrative Health

placebo effect psychoneuroimmunology mind-body medicine meditation neuroplasticity epigenetics
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

InterDoc: Productive Fictions — Real Effects from Nonexistent Referents

productive fictions false theories phlogiston caloric luminiferous aether imaginary numbers
Credible

INTERDOC_29 — Sacred Number, Geometry, and Architecture

The golden ratio (φ = 1.6180339...) — defined as the ratio where the whole is to the larger part as the larger part is to the smaller — appears in: the Parthenon façade (debated — Markowsky, 1992, argues the measurements

sacred geometry golden ratio phi Fibonacci vesica piscis Flower of Life
Verified

INTERDOC_13 — Out of Africa vs. Multiregional: The Synthesis That Changed Everything

The two dominant models of human origins battled from the 1980s through the 2010s. Chris Stringer and Peter Andrews championed the Recent African Origin (RAO) model (1988, Science): anatomically modern humans evolved exc

out of Africa multiregional recent African origin Homo sapiens dispersal admixture
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_2_11 Verified Ecology & Biology

ZB_2_11 — Biological Electricity and Bioelectricity

Electricity is fundamental to life — every living cell maintains a transmembrane potential (Vmem, typically −40 to −90 mV in animal cells) created by ion channels and pumps that selectively move Na⁺, K⁺, Ca²⁺, and Cl⁻ ac

bioelectricity electric fish electroreception ion channel membrane potential voltage
ZB_2_05 Verified Ecology & Biology

ZB_2_05 — Aging, Longevity, and the Biology of Death

Why do organisms age and die? This question — one of the oldest in human inquiry — has yielded remarkable molecular answers in recent decades. Leonard Hayflick's 1961 discovery that human cells have a finite replicative

aging longevity telomeres telomerase Hayflick limit senescence
ZB_2_19 Verified Ecology & Biology

ZB_2_19 — Epigenetics & Chromatin Modification

Epigenetics — literally "above genetics" — encompasses heritable changes in gene expression that occur without alterations to the DNA sequence itself. The term was coined by Conrad Hal Waddington in 1942 to describe how

epigenetics DNA methylation histone modification chromatin remodeling gene expression transgenerational inheritance
ZB_2_24 Verified Ecology & Biology

ZB_2_24 — Mechanotransduction and Piezoelectric Bioeffects

Living tissue is electrically polarized in response to mechanical stress through two complementary mechanisms: direct piezoelectricity in collagen, bone, and certain proteins, and active mechanotransduction through Piezo

mechanotransduction Piezo channels piezoelectricity bone remodeling ultrasound bioeffects vibration
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_02 Verified Ecology & Biology

ZB_1_02 — Social Insects — Superorganisms and Collective Intelligence

Social insects — ants, bees, wasps, and termites — represent one of evolution's most spectacular innovations: the subordination of individual reproduction to colony-level organization, producing "superorganisms" capable

eusociality social insects ants bees termites naked mole rats
ZB_1_01 Verified Ecology & Biology

ZB_1_01 — Animal Cognition — Corvids, Cetaceans, Cephalopods, and Non-Human Minds

The study of animal cognition has undergone a revolution over the past three decades, dismantling the long-held assumption that complex thought is uniquely human. The 2012 Cambridge Declaration on Consciousness formally

animal cognition corvids cetaceans cephalopods consciousness tool use
ZB_1_06 Verified Ecology & Biology

ZB_1_06 — Camouflage, Mimicry, and Biological Deception

Camouflage and mimicry represent some of evolution's most sophisticated solutions to the problems of predation and survival. Animals employ an extraordinary toolkit: background matching, disruptive coloration, countersha

camouflage mimicry crypsis Batesian mimicry Müllerian mimicry aggressive mimicry
ZB_1_10 Verified Ecology & Biology

ZB_1_10 — Sound Communication and Animal Vocalization

Sound communication is one of the most versatile and widespread signaling modalities in the animal kingdom, spanning frequencies from infrasound (elephants: ~14 Hz, traveling kilometers through air and ground) to ultraso

animal communication vocalization birdsong whale song vocal learning language
ZB_1_18 Credible Ecology & Biology

ZB_1_18 — Infrasound Communication in Animals: Elephants, Whales & Seismic Signaling

Infrasound — acoustic frequencies below the typical lower limit of human hearing (~20 Hz) — serves as a long-range communication channel for some of Earth's largest animals, enabling coordination over distances of kilome

infrasound animal-communication elephant-rumbles whale-song seismic-communication low-frequency
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