Evergreens' needles are their leaves, so why don't they change color and drop in the fall? Learn how evergreen leaves work in this classic episode of BrainStuff, based on this article: https://home.howstuffworks.com/evergreen-trees-dont-shed.htm

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Episode: https://omny.fm/shows/brainstuff/brainstuff-classics-why-dont-evergreen-trees-lose

Podcast: https://www.iheart.com/podcast/brainstuff-20922291/