Artistic representation of heart regeneration: Hmga1 in green symbolically flows from the border zone of a zebrafish heart (top right) to the injured border zone of a mouse heart (left). Red ...

Researchers at the Francis Crick Institute have discovered that the heart’s own contractions trigger biological signals that guide the formation of a functional beating heart. Their study in zebrafish ...

This rare glimpse into the beating heart of a zebrafish offers a view of how blood flows into and out of its heart. Zebrafish have a heart and a circulatory system similar to that of humans, but with ...