There is no relationship between the demographic susceptibility to extinction and the estimated extinction chronology among Sahul’s megafauna, suggesting that human choices, a species’ ecological requirements, and/or random climate variation instead determined the extinction chronology.

An association mapping in wild mice revealed the first candidate loci for within-population molar shape variation and the phenotypic impact of such candidate loci was quantified and validated.

Replicating experimental evolution from ancestral proteins shows that historical contingency steadily overwhelms chance and necessity as the primary cause of evolutionary variation in molecular sequences on long phylogenetic timescales.

A phylogeny of all major groups of flatworms based on hundreds of genes sheds new light the early evolution of this important metazoan phylum, with particular significance for the original of vertebrate parasitism.