Browse our latest Evolutionary Biology articles

Paleodemographic analyses in a hypothesis-testing framework show that the major life-history trait of seasonal migration has strong effects on long-term effective population sizes in a clade of songbirds.

Genetic labeling and molecular analyses characterize the dynamics of embryonic central complex-forming type II neuroblast lineages in Tribolium castaneum.

Even the smallest compound eyes retain the functional specialization of ommatidia.

Adaptive gene expression in the common shrew hypothalamus connects energy homeostasis with reversible brain size changes in response to seasonal environmental challenges.

A shared molecular basis of proteoglycan accumulation, driven by Wnt signaling, underlies the parallel evolution of hypertrophied lips in East African cichlids.

Chitons overcome evolutionary constraints through unprecedented genomic dynamism, with extensive chromosomal rearrangements and duplications despite about 300 million years of morphological stasis.

The mammalian gut microbiome can be used as a noninvasive and holistic predictor of biological age.

Sexually antagonistic pleiotropy involving frequency-dependent traits like mating display maintains linkage blocks like inversions as balanced polymorphisms in simulation, and may explain common inversion polymorphisms maintained at intermediate frequencies.

Evolved gene expression changes in Drosophila simulans uncovered the interplay between parallel evolution, polymorphism, and pleiotropy and indicated that both direct and indirect effects of pleiotropy contribute to parallel evolution.

Oscar homologs play a conserved role in Wolbachia-induced male-killing in Lepidoptera but not in other insects, highlighting the evolution of diverse male-killing mechanisms induced by Wolbachia.