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

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

ZB_2_00 — Organismal Biology Physiology: Subfolder Summary

ZB_1_00 — Animal Behavior Cognition: Subfolder Summary

ZB_1_11 — Predator-Prey Dynamics and Coevolution

Predator-prey dynamics are among the most fundamental processes structuring ecological communities, driving evolutionary arms races, and shaping biodiversity. The Lotka-Volterra equations (Lotka, 1925; Volterra, 1926) pr

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_5_04 — Epigenetics in Ecology and Evolution

Epigenetics — heritable changes in gene expression that do not involve changes to the DNA sequence — has transformed understanding of how organisms respond to environmental conditions, develop, and potentially transmit a

ZB_0_00 — Ecology & Organismal Biology: Section Summary

ZB_4_00 — Biome Landscape Ecology: Subfolder Summary

ZB_4_06 — Alpine and Arctic Ecology: Life at the Extremes

Alpine and Arctic ecosystems — the treeless biomes occurring above the climatic treeline in mountains (alpine) and above ~60–70°N latitude where mean temperature of the warmest month is <10°C (arctic) — share fundamental

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_11 — Warfare and Conflict — Anthropological Perspectives

The anthropology of warfare and conflict addresses one of the most consequential and contested questions in the human sciences: is organized violence a universal feature of human societies, an evolutionary inheritance, o

ZC_3_06 — Sociology of Law

Sociology of law examines law not as an autonomous system of rules but as a social institution — shaped by power, culture, and economic relations, and in turn shaping social life. Émile Durkheim (The Division of Labour i

ZC_3_12 — Colonialism and Postcolonial Theory

Colonialism — the practice of establishing political control over foreign territories, administering their peoples, and exploiting their resources for the benefit of the colonizing power — was the dominant global politic

ZC_3_19 — Digital Divide and Information Inequality

The digital divide — the gap between populations with effective access to digital and information technologies and those without — has evolved from a simple binary (connected vs. unconnected) into a multi-dimensional fra

ZC_3_08 — Aging and Gerontology

Social gerontology is the study of aging as a social process — examining how societies construct old age, how aging populations transform social institutions, and how older adults experience later life. Global demographi

ZC_3_18 — Surveillance Capitalism and the Digital Economy

Surveillance capitalism — a term coined by Shoshana Zuboff (Harvard Business School, The Age of Surveillance Capitalism, 2019) — describes an economic system in which human experience is unilaterally claimed as free raw

ZC_3_23 — Commons Governance — Ostrom

Elinor Ostrom (1933–2012), professor of political science at Indiana University Bloomington, became the first woman to receive the Nobel Memorial Prize in Economic Sciences (2009) for her groundbreaking work demonstratin

ZC_3_02 — Sociology of Science and Knowledge

Sociology of knowledge examines how social conditions shape what counts as knowledge. Karl Mannheim (Ideology and Utopia, 1929/1936) argued that thought is "existentially determined" — shaped by the thinker's social posi

ZC_3_13 — Human Rights: Universal Norms and Their Contested Foundations

Human rights — entitlements and protections considered inherent to all human beings regardless of nationality, ethnicity, sex, language, religion, or other status — constitute one of the most influential normative framew