Considerable differences are observed in the global dissemination patterns of HBV-D and HBV-A, the genotypes of which have putative origins in North Africa/Middle East (HBV-D) and the Middle East/Central Asia (HBV-A).
Reconstruction of great auk population dynamics suggests that hunting pressure alone could have been responsible for their extinction, demonstrating that even abundant, widespread species can be vulnerable to intense exploitation.
A global map of environmental suitability for Zika virus and the estimated population living at potential risk can help refine public health guidelines, travel advisories and intervention strategies at a crucial time in the global emergence of this arbovirus.
The analysis of 18th century Y. pestis genomes reveals a bacterial lineage that might be responsible for the 400-year period of European plague epidemics from the Renaissance through early modern times.
Unexpected structural diversity of nematode small molecules, as revealed by high-resolution phylogenetic analysis, suggests recurrent biochemical innovation, a pattern that is probably typical across animals.