To achieve a coherent evolutionary theory, it is necessary to account for the effects of the
environment on the process of development. Phenotypic plasticity is the change in the …

Phenotypic plasticity is the ability of an individual organism to alter its physiology/
morphology in response to changes in environmental conditions. This ability is particularly …

The value of big old fat fecund female fish (BOFFFFs) in fostering stock productivity and
stability has long been underappreciated by conventional fisheries science and …

Trade-offs represent the costs paid in the currency of fitness when a beneficial change in
one trait is linked to a detrimental change in another. If there were no trade-offs, then …

Synthesizing studies of parental care in a wide variety of animals, this book is the first
attempt to provide general answers to the following important questions: Why does the …

The rate of reproduction, age at maturity and longevity vary widely among species. Most of
this life-history variation falls on a slow-fast continuum, with low reproductive rate, slow …

Amid ongoing public speculation about the reasons for sex differences in careers in science
and mathematics, we present a consensus statement that is based on the best available …

The Ache, whose life history the authors recounts, are a small indigenous population of
hunters and gatherers living in the neotropical rainforest of eastern Paraguay. This is part …

Stephen C. Steams ariation, the fuel that feeds evolutionary change, origi-nates at the levels
of both the genotype and the phenotype. Geneti-cally identical organisms reared under …

It is widely agreed that fecundity selection and sexual selection are the major evolutionary
forces that select for larger body size in most organisms. The general, equilibrium view is …