A chronic stressor prior to mating has lasting negative consequences on the fertility and fecundity of female rats, which can be prevented by blocking a single hypothalamic reproductive inhibitory hormone.

Finch embryos are laid at an earlier stage than other avian embryos and contain cells with similar properties to pluripotent embryonic stem cells from mice.

Studying the development of the medial amygdala in the mouse reveals how the brain may potentially process sex differences in innate behaviors such as mating.

Genetic experiments in zebrafish identify neuropeptide VF (NPVF) signaling and NPVF-expressing neurons as a novel vertebrate hypothalamic sleep-promoting system that is functionally conserved with invertebrates.

General principles of the limb segment control for terrestrial locomotion have emerged in evolution and highlight the existence of the laws of biological motion that apply to various animal species.

Allelic MLA immune receptors have an exceptional propensity to directly detect sequence-unrelated pathogen effectors and this feature might have facilitated functional diversification of the receptor in the host population.

Homology of vertebrate skull structures should be based on evolutionary continuity and an appreciation of germ layer origins and inductive signaling in the embryonic head.

Transfection of quail primordial germ cells considerably expands the possibilities of genome modifications in birds, elevating the quail to the rank of genetic laboratory animal models of reference.

The genetic and behavioral diversity of the zebra finch, both in the wild and in captivity, make it well-suited for neuroethological studies of vocal learning, culture, and social bonding.

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.