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.
3,665 results for "P vs NP" — page 130 of 184
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
ZB_1_16 — Acoustic Ecology and Bioacoustics
Bioacoustics — the study of sound production, transmission, and reception in animals — and acoustic ecology (the study of organisms' relationships with their sonic environment) have revealed that the natural world is sat
ZB_5_26 — Mycorrhizal Networks: The Wood Wide Web and Underground Intelligence
Mycorrhizal networks — underground fungal hyphal systems that connect the roots of multiple plants — represent one of the most significant ecological discoveries of the past three decades. Suzanne Simard (University of B
ZB_5_25 — Animal Migration: Navigation, Endurance, and Ecological Connectivity
Animal migration — the seasonal, round-trip movement of populations between distinct habitats — represents some of the most extraordinary feats of endurance, navigation, and sensory capability in biology. Arctic terns (S
ZB_5_18 — Insect Decline Crisis
The global insect decline — sometimes called the "insect apocalypse" in popular media — refers to accumulating evidence that insect populations, biomass, and diversity are decreasing at alarming rates across many regions
ZB_5_13 — Ecological Economics: Valuing Nature's Services
Ecological economics is a transdisciplinary field that treats the human economy as a subsystem embedded within — and fundamentally dependent upon — the finite biophysical systems of the Earth, challenging the neoclassica
ZB_5_29 — Biomineralization: Biological Crystal Engineering from Shells to Bones
Biomineralization — the process by which living organisms produce minerals — is one of the most remarkable achievements of biological engineering, responsible for structures ranging from the calcium carbonate shells of m
ZB_5_05 — Extinction Biology and De-Extinction
Extinction — the complete disappearance of a species — is a permanent event that has shaped life's history as profoundly as origination. Background extinction (the normal, continuous loss of species) proceeds at ~0.1–1 s
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
ZB_5_27 — Human Microbiome: Gut-Brain Axis and Microbial Ecology
The human body hosts approximately 38 trillion microbial cells — roughly equal to the number of human cells — comprising ~3,000 species of bacteria, archaea, fungi, and viruses, collectively termed the microbiome. The Hu
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
ZB_4_16 — Mangrove Ecosystems
Mangroves are a group of approximately 70 species of salt-tolerant trees and shrubs that occupy the intertidal zone of tropical and subtropical coastlines worldwide, forming dense tidal forests that rank among the most p
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
ZB_4_13 — Historical Ecology: Human-Ecosystem Co-Evolution through Time
Historical ecology investigates how human land use, management, domestication, exploitation, and settlement over centuries to millennia have shaped contemporary ecosystems, landscapes, and biodiversity patterns — reveali
ZB_3_21 — Soil Microbiome
The soil microbiome encompasses the entire community of microorganisms inhabiting soil — bacteria, archaea, fungi, protists, and viruses — constituting the most biodiverse ecosystem on Earth. [KEY FINDING] A single gram
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
ZB_3_18 — Mycorrhizal Networks and Forest Ecology
Mycorrhizal networks — underground fungal networks connecting the roots of multiple plants — are among the most ecologically important symbioses on Earth, associating with ~90% of land plant species and mediating nutrien
ZB_3_10 — Wetland Ecology: Nature's Kidneys and Carbon Vaults
Wetlands — ecosystems where water saturation of soils is the dominant factor controlling plant and animal community composition, soil development, and biogeochemical cycling — encompass a vast diversity of habitat types
ZC_3_09 — Nationalism and Ethnic Conflict
Nationalism — the political principle and cultural sentiment that nations should have their own states — is arguably the most powerful political force of the modern era. Benedict Anderson (Imagined Communities, 1983/1991
ZC_3_21 — Degrowth Economics
Degrowth (décroissance in French) is an intellectual and political movement that challenges the foundational assumption of modern economics: that economic growth — measured by GDP — is inherently desirable, sustainable,
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