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Kurzgesagt 7 Jan 2026 25 here now

Why Are There No Holes Around Trees?

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Title: Why are there no holes around trees?
Video: How do trees work?
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5:42 is nobody gonna talk about the heart the trees make woth their roots, its so cute
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Congrats on the 25 mil.
This video made me realize that a Kurzgestagt video dedicated to Fungi would be very interesting, you should consider it.
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@dovahlaat From YouTube ↗ 21 Jan 2026 29
Not a lot of channels can leave me in awe like these guys can
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Also; "tree" is a category, not a clade, meaning that all this has evolved multiple times independently!
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7:26 that is so wild. I already knew about the algae oceans being the real air producers but that trees eat back a lot of their oxygen I didn't know. The root stuff is incredible. The innate programming of biological structures are /is wild. So wild.
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@DudeNoEdge From YouTube ↗ 21 Jan 2026 1000
This channel is my therapy
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8:44. As part of my biotechnology associates program, I have to perform laboratory work at a local independent plant science laboratory. The scientist I worked for is a renowned researcher in plant-arbuscular mycorrhizae fungi relationships. His lab studies the symbiotic relationships between fungi and plants at the molecular level. Using labeled isotopes and gas spectrometry metabolite analysis, his lab tracks the movement of molecules between the two species. Fungi uptake nutrients like phosphorus and potassium from soil and in return the plant roots share the fungi carbon in the form of specially modified fatty acids and hexose sugars. Certain fatty acid synthases are upregulated in some parts of the fungi in response to lipids provided by the plants. Ife also done some work in the greenhouses of the lab and learned that amf fungi indeed benefit the plants. The soybean plants sprouted more pods and were healthier. My boss thinks it could have applications in sustainable agriculture.
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Congratulations for 25 million!
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One of my fav Hank Green sayings is “air is made of stuff”. It’s something that is easy to forget but internalizes it suddenly makes a lot of things that feel unintuitive a lot more clear.
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@Cryo_Cross From YouTube ↗ 21 Jan 2026 1300
The more I'm learning about trees here, the more I'm realizing trees are just a very efficient logistics network for enabling photosynthesis to work
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Kurzgesagt, bring back the intro.
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7:00 the root knows where it is by knowing where it isnt
Edit: never knew this would pop up, thanks everyone
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After the immune system arc, the celestial body arc and the ant arc, kurz is now on the tree arc.
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@jacknemo8021 From YouTube ↗ 21 Jan 2026 1900
We really need to understand fungi far more deeply than we currently do. How about a deep dive Kurzgesagt?
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@jayaxell From YouTube ↗ 21 Jan 2026 1000
Everyone needs a fun guy. Even trees
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@Omnywrench From YouTube ↗ 21 Jan 2026 7200
I thought it was weird learning how trees can basically eat rocks, but then I realized we regularly sprinkle rocks on french fries and other food to make it taste better
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@hi_beemo1808 From YouTube ↗ 21 Jan 2026 9300
7:18 we finally figured out how paper beat rock
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@RyuPlayer777 From YouTube ↗ 21 Jan 2026 16000
Remember Kurzgesagt's obssesion with ants? Now we got the tree saga
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@kurzgesagt From YouTube ↗ 21 Jan 2026 681
Go to brilliant.org/nutshell/ to dive deeper into these topics and more for free for a full 30 days + get 20% off the premium subscription!
This video was sponsored by Brilliant. Thanks a lot for the support!