Additional file 3: of Tooth and scale morphogenesis in shark: an alternative process to the mammalian enamel knot system

Apoptosis detection in developing scale buds in the catshark Scyliorhinus canicula. Animation of successive merged views by confocal z-imaging of a of a thick transversal slice of a tail: apoptotic nuclei (TUNEL, red), and counter-staining against actin (phalloidin, red) and DNA (DAPI, blue). (AVI 23043 kb)