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.

Genome sequencing of mice selected for longer limbs reveals that rapid selection response is due to both discrete loci and polygenic adaptation.

During walking and turning, the fruit fly Drosophila uses variable limb coordination patterns, which exist on a low-dimensional, continuous manifold.

Size control in limbs is an intrinsically determined process.

A shift in antero-posterior positional information may contribute to the fin-to-limb transformation.

Quantitative analyses of multi-dimensional microscopy datasets with a new Fiji/ImageJ plugin for cell tracking reveal the lineage restrictions and morphogenetic cellular behaviors underlying embryonic limb outgrowth in the direct developing crustacean Parhyale hawaiensis.

While movement of Fgf-signaling to the limb mesenchyme accompanied a shift in function, the ultimate outcome remains a convergent tetrapod limb phenotype.

A novel mechanism links mechanical signals with the molecular YAP and NOTCH signals operating during developmental myogenesis.

Regulation of Pax6 expression through the α-enhancer fine-tunes amacrine cell subtype number, and consequently, the visual output of the retina.

Feathered feet of pigeons and chickens result from a partial molecular and morphological transformation of legs to a wing-like identity.