In this episode Drs. Janet Rossant and Patrick Tam, join the podcast. They are experts in early embryonic development and authors of new Perspective article in Stem Cell Reports,  Opportunities and Challenges with Stem Cell-Based Embryo Models. Embryo modeling is a rapidly emerging area of science which can help advance the understanding of early development, especially human development where insight has been limited due to technical and ethical issues. The article is online now and will appear in the May 2021 special issue of the journal.Show NotesGuestsJanet Rossant, PhD - Hospital for Sick Children, the University of Toronto and the Gairdner Foundation. Website: https://lab.research.sickkids.ca/rossant/Patrick Tam, PhD - University of Sydney, Australia Website: https://www.cmrijeansforgenes.org.au/researchers/patrick-tamHostMartin Pera, PhD – Editor-in-Chief, Stem Cell Reports and The Jackson LaboratoryWebsite: https://www.jax.org/research-and-faculty/faculty/martin-peraTwitter: @martinperaJAX (https://twitter.com/martinperajax) Podcast Website: https://thestemcellreport.buzzsprout.com/Supporting ResourcesOpportunities and Challenges with Stem Cell-Based Embryo ModelsWebsite: https://www.cell.com/stem-cell-reports/fulltext/S2213-6711(21)00082-5 DOI: https://doi.org/10.1016/j.stemcr.2021.02.002NIH Blog Website: https://osp.od.nih.gov/2021/03/11/human-embryo-development/About Stem Cell ReportsStem Cell Reports is the Open Access journal of the International Society for Stem Cell Research for communicating basic discoveries in stem cell research, in addition to translational and clinical studies. Stem Cell Reports focuses on original research with conceptual or practical advances that are of broad interest to stem cell biologists and clinicians.Website: https://www.cell.com/stem-cell-reports/homeTwitter: @stemcellreports (https://twitter.com/stemcellreports)About ISSCRWith nearly 4,000 members from more than 60 countries, the International Society for Stem Cell Research is the preeminent global, cross-disciplinary, science-based organization dedicated to stem cell research and its translation to the clinic. The ISSCR mission is to promote excellence in stem cell science and applications to human health. Website: International Society for Stem Cell ResearchTwitter: @ISSCR (https://twitter.com/isscr)AcknowledgementsISSCR StaffKeith Alm, Chief Operating OfficerBethany Almon, Senior Manager of Integrated MarketingYvonne Fisher, Managing Editor, Stem Cell ReportsKym Kilbourne, Director, Media and Strategic CommunicationsJack Mosher, Senior Manager, Scientific AffairsNancy Witty, Chief Executive OfficerVoice WorkBen SnitkoffMusicKonovalovMusic, @KonovalovMusic