Scanning electron micrograph of
a four-day-old zebrafish embryo.
To capture this image, the zebrafish
was physically attached to a stub
(specimen holder) by its tail and
tilted to 65 degrees. As zebrafish
embryos are approximately 1cm in
length, making the whole
embryo too big to be captured in
a single image, three separate
images had to be taken along its
length and then stitched
together digitally. Color was then
added to the black-and-white image.