Origin of Blood Stem Cells (VIDEO) University of California - San Diego This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Biologists at UC San Diego have located the origin of blood stem cells, or hematopoetic cells, in the zebra fish embryo. Credit UC San Diego Usage Restrictions Any re-use must include complete credits. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.