Skeleton of a Chameleon Embryo : 2012

Photograph by

Dorit Hockman

About this image

Light micrograph of a prepared specimen of an embryo of a Veiled Chameleon, Chamaeleo calyptratus. The skin was removed and the embryo treated with skeletal stains. These render cartilage in blue and bone in red. During development, the skeleton starts out as cartilage which is rapidly replaced by bone. Here most of the skeleton has turned into bone, with just the front ribs and parts of the skull still as cartilage. This image was taken as part of research into embryonic development and the diversity of growth in different species. The image was captured using a Leica dissecting microscope and digital camera. Trinity College, University of Cambridge, Cambridge, United Kingdom