To protect the germ line genome, chickens acquire new small RNA-based immune defense in response to recently endogenized retroviruses by turning a truncated provirus into a weapon.

Spatial numerical association in three-day-old domestic chicks linearly decreases as numerical magnitude increases (2>5>8), supporting the hypothesis that numerical magnitude guides the spatial numerical association.

A molecular atlas of the chick retina provides a comprehensive classification and characterization of 136 cell types, yielding novel insights into retinal structure, function, development, and evolution.

Chick optic fissure closure is a powerful new model system for epithelial fusion and has revealed Netrin-1 as a conserved and essential mediator of tissue fusion in multiple contexts.

In Aves, the first wave of transcription is derived exclusively from the maternal genome.

Without specific training, young chicks represent the absence of objects, showing that the concept of 'nothing' is available to nonhuman animals and does not require linguistic tools, such as negation.

Elevating FUS level by saturating autoregulation loop in mice causes aggressive motor neuron disease via disrupting protein and RNA homeostasis.

In ovo light exposure that induces brain lateralization boosts chicks' number sense and spatial-numerical association.

A simple cryopreservation method using chicken eggs will be a valuable tool to safeguard genetic diversity and conserve the 1600 local breeds of chicken on the planet.

Human somites are formed in organoids from human pluripotent stem cells.