Mimic defectors to keep them from winning... and more
Stabilization of cooperative virulence by the expression of an avirulent phenotype "host manipulation by S. typhimurium is a cooperative trait that is vulnerable to the rise of avirulent defectors; the expression of a phenotypically avirulent [but genetically identical] subpopulation that grows as fast as defectors slows down this process, and thereby promotes the evolutionary stability of virulence"
Evolution of a genetic polymorphism with climate change in a Mediterranean landscape "significant increase in the proportion of morphs that are sensitive to winter freezing... associated with relaxed selection (less extreme freezing events)"
Behavioural and genetic analyses of Nasonia shed light on the evolution of sex pheromones "male Nasonia vitripennis evolved an additional pheromone compound differing only in its stereochemistry from a pre-existing one... females responded neutrally to the new pheromone... new pheromone compounds can persist in a sender's population, without being selected against by the receiver and without the receiver having a pre-existing preference for the new pheromone phenotype, by initially remaining unperceived."
Differential requirements for mRNA folding partially explain why highly expressed proteins evolve slowly "Counterintuitively, selection for mRNA folding also impacts the nonsynonymous-to-synonymous nucleotide substitution rate ratio, requiring a revision of the current interpretation of this ratio as a measure of protein-level selection."