The brain creates internal 'maps' to help us navigate and learn from our surroundings, but how these maps form remains a challenge to understand. Now, a study led by Liset M. de la Prida at the Cajal ...

Two layers of cells known as iridophores contain these nanocrystals. A superficial layer, known as S-iridophores, actively alters the spacing of these crystals to cause the rapid color changes, while ...