The most viewed posts on Haldane’s Sieve this month were:

• Investigating the Evolutionary Importance of Denisovan Introgressions in Papua New Guineans and Australians. Hu et al. identify haplotypes in Oceanians that appear to have introgressed from interbreeding with Denisovans.
• Flawed evidence for convergent evolution of the circadian CLOCK gene in mole-rats. Delsuc critiques a paper on convergent evolution in mole rats.
• Early modern human dispersal from Africa: genomic evidence for multiple waves of migration. Tassi et al. argue that Australo-Melanesian populations partially descend from an early out-of-Africa migration of modern humans.
• Author post: Adaptive evolution is substantially impeded by Hill-Robertson interference in Drosophila. Castellano and Eyre-Walker discuss their preprint on the consequences of Hill-Robertson interference.
• Origins of de novo genes in human and chimpanzee. Ruiz-Orera et al. use RNA-seq to identify newly-evolved genes in primates.