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.
133 results for "natural selection" — page 5 of 7
ZD_1_05 — Computational Complexity: P vs NP and the Limits of Efficient Computation
Computational complexity theory classifies problems not by whether they can be solved, but by how efficiently they can be solved — and its central open question, P vs NP, is one of the seven Clay Millennium Prize Problem
ZD_2_10 — Speech Recognition and Synthesis: From Acoustic Models to Neural Voice Generation
Speech recognition (Automatic Speech Recognition — ASR) and speech synthesis (Text-to-Speech — TTS) are complementary technologies that bridge human spoken language and machine processing. ASR converts spoken audio into
L_1_10 — Neanderthal Genome and Legacy in Modern Humans
The sequencing of the Neanderthal genome ranks among the most significant achievements in modern biology. Beginning with the draft genome of Green et al. (2010) and refined by later high-coverage genomes from the Altai,
L_2_01 — Domestication Genetics — How Humans Reshaped Life
Domestication — the genetic transformation of wild species into human-dependent organisms — ranks among the most consequential biological processes in Earth's history.
L_3_09 — HLA Diversity and Immune System Evolution
The Human Leukocyte Antigen (HLA) system — the human version of the Major Histocompatibility Complex (MHC) found in all jawed vertebrates — is the most polymorphic gene region in the entire human genome. Located on chrom
L_3_13 — Human Accelerated Regions: What Makes Us Genetically Unique
Human Accelerated Regions (HARs) are short segments of the genome that were highly conserved across millions of years of mammalian evolution — indicating strong functional constraint — but then underwent a burst of rapid
L_3_05 — Blood Type Genetics and the ABO System
Blood group genetics represents one of the earliest and most clinically important applications of Mendelian inheritance in human biology. Karl Landsteiner's discovery of the ABO blood group system (1900–1901) — which ear
L_3_03 — Lactase Persistence and Gene-Culture Coevolution
Lactase persistence — the ability of adults to digest the milk sugar lactose — is the most thoroughly documented case of gene-culture coevolution in the human species. The ancestral mammalian condition is lactase non-per
P_5_10 — Philosophy of Religion: Faith, Reason, and Mystical Experience
The philosophy of religion is the branch of philosophy that critically examines the concepts, arguments, and experiences at the heart of religious belief and practice — not from within any particular faith tradition but
P_2_12 — Meta-Ethics: Moral Realism, Emotivism, and Constructivism
Meta-ethics is the branch of moral philosophy that asks foundational questions not about what is right or wrong (that is normative ethics) but about the nature, status, and foundations of moral claims themselves: Do mora
P_2_17 — Philosophy of Law: Jurisprudence and Legal Theory
Jurisprudence — the philosophical study of law's nature, authority, and relationship to morality — addresses foundational questions: What makes a rule a "law"? Is law necessarily connected to morality? How should judges
P_2_01 — The Problem of Evil and Theodicy
The Problem of Evil is the oldest and most potent objection to the existence of an omnipotent, omniscient, benevolent God. First formulated rigorously by Epicurus (~300 BCE): "If God is willing to prevent evil but unable
ZE_5_11 — Moral Relativism vs. Universalism: Cross-Cultural Moral Disagreement
The debate between moral relativism and moral universalism is among the most fundamental in ethics. Relativism holds that moral judgments are valid only relative to a cultural, historical, or individual framework — there
ZE_1_09 — Metaethics and Moral Realism
Metaethics asks not "what should I do?" (normative ethics) but "what is the nature of moral claims themselves?" — investigating whether moral facts exist, what moral language means, how moral knowledge is possible, and t
ZE_1_07 — Social Contract Theory
Social contract theory holds that political authority and moral/political obligations are grounded in an agreement — actual or hypothetical — among individuals to form a society and accept governance. The theory addresse
ZE_1_02 — Political Philosophy — Power, Justice, and the State
Political philosophy examines the fundamental questions of collective human life: What is justice? What legitimates political authority? When is revolution justified? Who should rule? From Plato's philosopher-kings throu
ZE_1_12 — Comparative Legal Philosophy — Sacred Law Across Cultures
Comparative legal philosophy examines how different civilizations ground law in sacred or metaphysical foundations, producing legal systems that differ fundamentally in their relationship between human legislation and tr
ZE_1_01 — Ethics Across Civilizations: Universal Moral Patterns
Despite vast cultural differences, virtually every civilization in human history has independently developed strikingly similar core moral principles: reciprocity (the Golden Rule), prohibitions against murder and theft,
R_4_12 — Mimicry: Batesian, Müllerian, and Aggressive Deception
Mimicry — the resemblance of one organism (the mimic) to another (the model) or to an environmental feature, evolved to deceive a third party (the signal receiver, typically a predator) — is one of the most elegant demon
R_4_09 — Parasitism and Host-Parasite Coevolution
Parasitism — a symbiotic relationship in which one organism (the parasite) benefits at the expense of another (the host) — is arguably the most common lifestyle on Earth. By some estimates, over 40% of all described spec
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