There is substantial evidence that males are more variable than females in general
intelligence. In recent years, researchers have presented this as a reason that, although …

Many genes involved in immunity evolve rapidly. It remains unclear, however, to what extent
pattern-recognition receptors (PRRs) of the innate immune system in vertebrates are subject …

In social animals, body size can be shaped by multiple factors, such as direct genetic effects,
maternal effects, or the social environment. In ants, the body size of queens correlates with …

Some species have potential for intense mate competition yet exhibit little or no sexual size
dimorphism, despite predictions from sexual selection theory. Using a conceptual model, we …

Avian plumage colors are frequently used in studies of sexual selection, yet surprisingly little
is known about how these traits evolve under different mating systems. We compared …

El dimorfismo de talla inverso (hembras más grandes que los machos) ha evolucionado
independientemente en varios grupos de aves como las rapaces, los playeros y las aves …

It is not clear whether genes of the innate immune system of vertebrates are subject to the
same selective pressures as genes of the adaptive immune system, despite the fact that …