See Thru Guppy Images from Philip Shaddock the Guppy Designer

Thanks to Philip Shaddock AKA The Guppy Designer for the use of his wonderful images of the clear guppy. Through dedication and lots of work he has created a transparent guppy using three genes to knock out the melanophores, iridophores and xanthophores making a fish useful and freely available to the scientific community. Here is a paper describing this wonderful project: http://www.bioflux.com.ro/docs/2009.2.137-145.pdf