The coexistence of discrete morphs that differ in multiple traits is common within natural
populations of many taxa. Such morphs are often associated with chromosomal inversions …

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

Hybridization allows adaptations to be shared among lineages and may trigger the evolution
of new species,. However, convincing examples of homoploid hybrid speciation remain rare …

Hybridisation and introgression can dramatically alter the relationships among groups of
species, leading to phylogenetic discordance across the genome and between populations …

Most speciation events probably occur gradually, without complete and immediate
reproductive isolation, but the full extent of gene flow between diverging species has rarely …

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

Hybridization as an evolutionary process has been studied in depth over the past few
decades. Research has focused on its role in sha** reproductive barriers, its adaptive …

The Heliconius butterflies are one of the classic systems in evolutionary biology and have
contributed hugely to our understanding of evolution over the last 150 years. Their dramatic …

Coevolutionary diversification is cited as a major mechanism driving the evolution of
diversity, particularly in plants and insects. However, tests of coevolutionary diversification …

Visual signaling in animals can serve many uses, including predator deterrence and mate
attraction. In many cases, signals used to advertise unprofitability to predators are also used …