Browse our latest Evolutionary Biology articles

Stunning new scan data of an enigmatic fish from the Early Devonian of Australia, Ligulalepis, is identified as a stem osteichthyan, specifically, as the sister taxon to the 'psarolepids' plus crown osteichthyans.

A number of microbial eukaryotes have adapted to low oxygen conditions by acquiring a gene that allows their mitochondrial electron transport chain to continue to function when oxygen is scarce.

Human and chimpanzee-induced pluripotent stem cells show limited species-specificity in transposable element silencing.

An analysis of influenza viruses from naturally infected people suggests a tight transmission bottleneck and little positive selection within hosts.

Bacteria can exhibit herd immunity protection against phages, which may play a significant role in their ecology and evolution.

Deep mutational scanning of Env proteins from two transmitted-founder strains of HIV shows how the accessible evolutionary space changes as the virus evolves.

The system that controls gene expression by the plant signaling molecule auxin has deep evolutionary roots, and stepwise increases in system complexity shaped the highly diverse auxin response in land plants.

Evolutionary reduction in tissue number involves the simplification of the seaming process but not signaling during epithelial fusion.

Different developmental stages of a venomous animal (e.g. Nematostella vectensis) with a complex life cycle produce vastly different venoms that can serve in different antagonistic interactions with other species.

The biology of sponges provides clues about how early animals may have dealt with low levels of oxygen.