image: The body axis develops as a series of segments that later become the vertebrae, and which guide nerves to their muscles. This image relates to a paper that appeared in the 9 Jan., 2014, issue of Science Express, published by AAAS. The paper, by A.S. Dias at University College London in London, UK, and colleagues was titled, "Somites Without a Clock." view more
Credit: [Image courtesy of Dr. Irene De Almeida]