LI Jinsong is engaged in research on stem cells and embryonic development. He earned a doctorate from the Institute of Zoology, Chinese Academy of Sciences in 2002. He conducted postdoctoral research at Rockefeller University from 2002 to 2007 and became a professor at the Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences in August 2007. He led a team to establish mouse androgenetic haploid embryonic stem cells (also known as “spermatid-like stem cells”), proving they can replace sperm to fertilize oocytes and produce healthy mice (a technique known as “semi-cloning”), and utilized spermatid-like stem cells carrying the CRISPR-Cas9 library for genetic screening at the individual mouse level. He proposed and promoted a genome tagging project based on spermatid-like stem cell technology. His research achievements were selected as “Top Ten Scientific Advances in China” in 2011 and 2012. He has published over 60 research articles as the first author or corresponding author in journals such as Cell, Nature, Cell Stem Cell, and Nature Cell Biology. He received honors including the National Science Fund for Distinguished Young Scholars and Young and Middle-aged Science and Technology Innovation Leaders.