
This beautiful image of the brain of a 5-day-old zebrafish larva, which was created by Albert Pan of Harvard University, has just won 4th place in the 2008 Olympus BioScapes Digital Imaging competition. (See a larger version here.)
It was created using the Brainbow technique, a genetic method for labelling neurons, with which individual cells can be made to express a random combination of fluorescent proteins. An image of a mouse brainstem labelled using the same method was awarded 1st prize in last year’s competition.