The endoplasmic reticulum is usually the biggest organelle in eukaryotic cells; it has various portions that serve different purposes; and it is the site of protein production, as well other other ...

Biological adaptation encompasses the range of structural, physiological and behavioural adjustments that organisms employ to survive and reproduce under changing environmental conditions. At the ...

The genome is more than just its sequence; epigenetic features of DNA, like chemical tags that may be attached, or how it's organized and structured, can have a significant impact on gene expression ...

Speciation and adaptation arise from the dynamic interplay of genetic variation, natural selection, genetic drift and gene flow. Divergence between populations often begins with ecological or ...

Introduction : Organization and causation -- The establishment of causal theories in evolutionary biology -- The nature and origin of life -- The course of evolution -- Organism and environment : ...

Part I. Selection: Darwin and natural selection -- The group selection controversy -- For whose good does natural selection work? -- Part II. Adaptation: Darwin (and others) on biological perfection - ...

From a new paper published in Ecology Letters, this graphic shows examples of how interactions between temperature and sexual selection drive the co-adaptation of thermal physiology, thermoregulation ...