Behavioral and Brain Sciences

Short Communication

Phylogenetics and the aptationist program

Pierre Deleporte a1
a1 UMR6552 Ethology–Evolution–Ecology, CNRS, Université Rennes 1, Station Biologique, 35380 Paimpont, France


The aptationist program includes attempts at sorting adaptations from exaptations, and therefore requires knowledge of historical changes in biological character states (traits) and their effects or functions, particularly for nonoptimal aptations. Phylogenetic inference is a key approach for historical aspects of evolutionary hypotheses, particularly testing evolutionary scenarios, and such “tree-thinking” investigation is directly relevant to the aptationist program.