Evergreens' needles are their leaves, so why don't they change color and drop in the fall? Learn how evergreen leaves work in this episode of BrainStuff.
 Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Evergreens' needles are their leaves, so why don't they change color and drop in the fall? Learn how evergreen leaves work in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

Why Don't Evergreen Trees Lose Their Needles?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

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Why Don't Evergreen Trees Lose Their Needles?

Why Don't Evergreen Trees Lose Their Needles?