# Episode 155: Embryology and Development Page: https://stenobird.com/podcast/the-science-of-everything-podcast-533303/episode-155-embryology-and-development Text version: https://stenobird.com/podcast/the-science-of-everything-podcast-533303/episode-155-embryology-and-development.md Podcast: [The Science of Everything Podcast](https://stenobird.com/podcast/the-science-of-everything-podcast-533303) Published: 2025-10-24T01:52:59+00:00 Episode link: https://www.thescienceofeverything.net/e/episode-155-embryology-and-development/ Audio file: https://mcdn.podbean.com/mf/web/v5wj9ax2nat42pye/Episode_155_-_Embryology_and_Development9mlwa.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/the-science-of-everything-podcast-533303/episodes/episode-155-embryology-and-development Duration seconds: 4228 ## Resource An introduction to the process of development, beginning with fertilisation and covering the stages of blastocyst formation, implantation into the uterus, gastrulation and its constituent cell movements, neurulation and the role of the notochord, and the beginnings of organogenesis. We also discuss the differences in gastrulation between protostomes and deuterostomes, along with the many specialised structures found in amniotes to protect the growing embryo from drying out. We conclude with overview of some of the genetic mechanisms government the development process, including Hox genes and their role in governing genetic regulatory networks. Recommended prelistening is Episode 25: Tissues, Organs, and Systems. If you enjoyed the podcast please consider supporting the show by making a PayPal donation or becoming a Patreon supporter. https://www.patreon.com/jamesfodor https://www.paypal.me/ScienceofEverything ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-science-of-everything-podcast-533303/episodes/episode-155-embryology-and-development/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/the-science-of-everything-podcast-533303/episode-155-embryology-and-development.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.