Big, time-scaled phylogenies are fundamental to connecting evolutionary processes to
modern biodiversity patterns. Yet inferring reliable phylogenetic trees for thousands of …

Mountain ranges harbour exceptionally high biodiversity, which is now under threat from
rapid environmental change. However, despite decades of effort, the limited availability of …

After decades of debate, biologists today largely agree that most speciation events require
an allopatric phase (that is, geographic separation), but the role of adaptive ecological …

Snakes of the cosmopolitan family Viperidae comprise around 329 venomous species
showing a striking heterogeneity in species richness among lineages. While the subfamily …

Beringia is a biogeographically dynamic region that extends from northeastern Asia into
northwestern North America. This region has affected avian divergence and speciation in …

It has long been appreciated that analyses of genomic data (eg, whole genome sequencing
or sequence capture) have the potential to reveal the tree of life, but it remains challenging …

We investigated whether celebrated cases of evolutionary radiations of passerine birds on
islands have produced exceptional morphological diversity relative to comparable-aged …

Turdus pilaris, and T. iliacus) are changed for the same reason;(3) four species (Eugenes
spectabilis, Loxia sinesciuris, Melozone cabanisi, and Junco bairdi) are added to the main …

Adaptive radiation is the rapid evolution of morphologically and ecologically diverse species
from a single ancestor. The two classic examples of adaptive radiation are Darwin's finches …

The babblers are a diverse group of passerine birds comprising 452 species. The group was
long regarded as a “scrap basket” in taxonomic classification schemes. Although several …