Research into Heliconius butterflies has made a significant contribution to evolutionary
biology. Here, we review our understanding of the diversification of these butterflies, covering …

Müllerian mimicry among Neotropical Heliconiini butterflies is an excellent example of natural
selection, associated with the diversification of a large continental-scale radiation. Some of …

… Kozak, unpublished). The ML tree was estimated with and without each of the constraints,
using random starting trees and the GTRGAMMA optimization. Likelihoods of the results were …

Secondary plant compounds are strong deterrents of insect oviposition and feeding, but may
also be attractants for specialist herbivores. These insect-plant interactions are mediated by …

Laboratory studies were performed to assess the impact of peroxide bleaching on enamel
surface and subsurface physical and ultrastructural properties. Human enamel blocks were …

Evolutionary convergence of color pattern in mimetic species is tightly linked with the
evolution of chemical defenses. Yet, the evolutionary forces involved in natural variations of …

How frequent is gene flow between species? The pattern of evolution is typically portrayed as
a phylogenetic tree, yet gene flow between good species may be an important mechanism …

Repeated evolution can provide insight into the mechanisms that facilitate adaptation to novel
or changing environments. Here we study adaptation to altitude in two tropical butterflies, …

Objective This study examined the effects of hydrogen peroxide tooth bleaching strips on the
surface hardness and morphology of enamel and the ultrastructure and chemical …

… Whereas there is a global theoretical drop in temperature of 1C for every 100 m increase
in altitude [108], or a drop of 1C for every 154 km shift from northwards the equator [109], a …