Uploaded November 2023 | Updated September 2026, 2 weeks ago

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Hosted by: Jessi Knudsen Castañeda (she/her/they/them)
Arwen Hubbard: Writer
Kyle Nackers: Fact Checker
Alex Billow: Script Editor
Madison Lynn: Videographer
Stefan Chin: Editor
Josef "Tuna" Metesh: Sound Designer
Aimee Roberts: Art Director/Puppeteer
Sam Schultz: Creative Director/Script Supervisor
Daniel Comiskey: Editorial Director
Jess Stempert: Producer
Savannah Geary: Producer
Nicole Sweeney: Executive Producer
Hank Green: Executive Producer

Sources:
scijinks.gov/leaves-color

Images:
gettyimages.com/detail/video/moving-along-an-idyllic-path-out-of-the-forest-stock-footage/1342921112?adppopup=true
gettyimages.com/detail/video/macro-shot-close-focus-on-a-green-leaf-stock-footage/1319643281?adppopup=true
gettyimages.com/detail/photo/microscope-image-of-moss-leaf-cells-and-royalty-free-image/154924510?phrase=chlorophyll&adppopup=true
gettyimages.com/detail/video/tropical-leaves-monstera-exotic-plant-swaying-in-wind-stock-footage/1206450180?adppopup=true
gettyimages.com/detail/video/sunlight-shines-through-snow-covered-pine-branches-stock-footage/1443692391?adppopup=true
gettyimages.com/detail/video/senior-adult-and-his-grandson-throwing-up-yellow-fallen-stock-footage/1408620837?adppopup=true