The retrieval of whole genomes from museum specimens from the extinct Xerxes Blue butterfly shows signals of population decline that could be use to identify present-day endangered insect species.

Treating color patterns in a geometric morphometrics framework reveals rapid rates of color evolution that are explained by a combination of intrinsic organismal features (color variation among patches) and geography within a cosmopolitan radiation of birds.

The changes in shape of iridophores that underlie adult colour pattern formation in zebrafish depend on the levels of Tight Junction Protein 1a in these cells.

Melanophores and xanthophores interact via heteromeric gap junctions composed of Connexin 41.8 and Connexin 39.4 to establish the adult pigment pattern in zebrafish.

Using the short-lived turquoise killifish, a transparent in vivo reporter line named klara is established that will be a valuable tool to explore development, senescence, aging, and regeneration.

Astyanax mexicanus surface-dwelling fish exposed to complete darkness develop many traits resembling cavefish adaptations by phenotypic plasticity in a single generation.