James E Gomez, Benjamin B Kaufmann-Malaga ... Deborah T Hung
Mutations in several components of a bacterial ribosome are shown to broadly decrease antibiotic and stress sensitivity, and readily accessible reversion mutations allow these ribosomal mutations to serve as stepping stones to high level antibiotic resistance.
Molecular profiling of annelid myocytes reveals that the last common protostome-deuterostome ancestor already possessed a dual musculature, with visceral smooth muscles ensuring digestion and somatic striated muscles ensuring locomotion.
Fidelis T Masao, Elgidius B Ichumbaki ... Giorgio Manzi
Bipedal footprints made 3.66 million years ago provide the clearest available evidence to date of the occurrence of marked body size variation in Australopithecus afarensis..
Adria C LeBoeuf, Patrice Waridel ... Laurent Keller
The socially exchanged fluid passed mouth-to-mouth during trophallaxis contains molecules that can influence development, potentially mediating communal control of colony phenotypes.
Sven Schenk, Christian Krauditsch ... Florian Raible
A small brain-derived lipid prevents bristle worms from entering maturation and death, challenging current views of hormone evolution and pesticide specificity.
François Blanquart, Mary Kate Grabowski ... Christophe Fraser
Analysis of epidemiological data reveals that viral loads in newly HIV-1 infected individuals in Uganda have declined for two decades, and evolutionary modelling shows that attenuation of the virus explains this decline.
During evolutionary progression of Alu-exons, repressive U-tracts buffer sudden gains in 3' splice site strength and prevent inclusion of cryptic exons.
