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You Had A Cell That Was Larger Than A Bedsheet

SciShow, 20 min, 195K views, Jan 21, 2026

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When she was pregnant a few years ago, Hannah Yevick was reading about the placenta and learned it contained a cell whose surface spanned a whopping 13 square meters—larger than a King-sized bed sheet. The Brandeis University biophysicist was immediately fascinated, and her research on this giant cell is now revealing a lot about how cells work in general. For this SciShow Field Trips episode, we traveled to Yevick's lab to learn about the largest cell in the human body. 00:00 - Video start 17:51 - Skip here to skip discussion of preeclamsia 19:31 - Video end Hosted by: Jaida Elcock (she/her) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/d/e/2PACX-1vTWX7pTKpBff7z1M6otEerYF3TpUeo5pHMCXdWCr6vlzZv8AdTqB5rc24TtAt4MW_aiU0NfHyVJp5Ri/pub