Monophyly in Evolutionary Biology: Defining Clades, Paraphyly, and Polyphyly Monophyly Overview of monophyly in evolutionary biology: what defines a clade and how paraphyly and polyphyly differ, with examples, classification implications, and molecular evidence.
Species: definition, classification, and biological importance Species An overview of the biological concept of species: definitions, taxonomic context, history, methods of identification, examples, and why species matter for biodiversity and conserva…