Interest in the ecology, biology and evolution of amphioxus is growing, and the availability of several species is helping to improve our understanding of chordate evolution.

The same genes and signaling pathways control the formation of limbs in vertebrates, arthropods and cuttlefish.

Cuttlefish embryos reveal that cephalopod mollusks evolved specialized arms and tentacles by activating the same genetic circuits that control development of limbs in arthropods and vertebrates.

As the Turkish government intensified its attacks on the theory of evolution, the academic community rallied to push back. A researcher recounts how she decided to join them.

Evolutionary reconstruction of the ecdysis pathway shows that its major elements are present in the majority of metazoans, providing evidence that they originated much earlier than currently assumed.

The coding sequences of a very highly conserved family of neurogenic transcription factors from different species have evolved to generate proteins that have different life times causing them to display quantitatively different neural induction potentials.

Transgenic analysis reveals a role for LEAFY in ferns that supports a trajectory from general to floral meristem-specific function as land plants evolved.

Mammals evolved an invasive placenta early in the origins of pregnancy.

The overexpression of RNA chaperones, including several DEAD box RNA helicases, enhances the fitness of mutationally compromised E. coli strains.

A broad mutational target is the cause of the high mutational variance and corresponding fast phenotypic evolutionary rate in P3.p cell fate in Caenorhabditis nematodes.