Zebrafish have lubricated joints similar to ours and are a tractable model for arthritis research.

Phylogenetic, biochemical, and genetic techniques reveal a novel and ancient member of the Perilipin family, termed Plin6, that functions to concentrate and traffic lipophilic skin pigment in teleost fish.

The genomic features associated with a gene fate to loss have been retained for approximately 500 million years during evolution, and the genes with these features exhibit restricted expression profiles, leading to the genes being less important.

The hadal snailfish rapidly evolved and adapted to extreme deep-sea environments, modifying crucial genes and enhancing tolerance to high-hydrostatic pressure through ferritin gene duplication.

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.

The new whale shark genome assembly represents the best gapless chondrichthyan genome assembly yet, and comparative genomic analyses provide insights into the evolution of vertebrate genome origins, immunity, and gigantism.

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.

Jaw joint regulatory sequence 1 (JRS1) is deeply conserved in most jawed vertebrates and displays a specific enhancer activity in the developing primary jaw joint that contributes to early nkx3.2 gene expression and jaw joint morphology.

Rewiring of transcriptional circuits can preserve a basic output yet alter almost all of the circuit's quantitative and qualitative features.

Fossilized feces (coprolites) of extinct bone-crushing dogs, Borophagus parvus, from late Miocene (6 million years ago) of California demonstrates consumption and preservation of bones in digestive tracts and potential social hunting behavior by these predators.