Biology Discoveries

Proposal that a short standardised DNA sequence (cytochrome c oxidase I) can serve as a species-level identifier for animals, analogous to a barcode.

Reclassification of life into three domains (Bacteria, Archaea, Eukarya) based on ribosomal RNA sequences, revealing Archaea as a distinct domain.

Isolation of thermophilic microorganisms from hot springs in Yellowstone National Park, challenging assumptions about the limits of life.

Introduction of the binomial naming system for species (genus + specific epithet) and hierarchical classification, standardising biological nomenclature worldwide.