Blue wave of death caught on camera

‘Death is frequently associated with the colour black, but for some worms the grim reaper comes wearing robes of fluorescent blue.

Hours before it dies, a wave of blue light flows through the body of a flatworm, Caenorhabditis elegans. Now, the biological mechanisms leading up to the flatworm’s death have been studied for the first time – revealing an unexpected source for this blue wave of death.’ (New Scientist).