Deep Look
Deep Look
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Watch Ferns Get Freaky | Deep Look
Look at the underside of a fern leaf. Those rows of orange clusters aren’t tiny insects; they’re spores waiting to be catapulted away. Once a spore lands, it grows into a tiny plant, from which fern sperm swim away, searching for an egg to fertilize. Think of *that* next time you’re hiking in the forest.
Is There a Quick Fix for Ocean Acidification? : czcams.com/video/PqFwRMgvMVY/video.html
PBS EARTH MONTH PLAYLIST: czcams.com/play/PLnNZYWyBGJ1F8ofFm4H9UTrHxqU8zngK4.html
DEEP LOOK is an ultra-HD (4K) short video series created by KQED in San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.
---
Each of the clusters on the fern leaf is called a sorus. Within each sorus are wormlike structures called sporangia, which are filled with spores.
If you look at a sporangium under a microscope, you see it has an outer ring filled with water. When the spores mature and it’s warm outside, that water starts to evaporate. The ring shrinks and bends back, making the sporangium crack open. Then the ring jerks forward, hurling out the spores.
A single fern launches millions of spores. Each one grows into a tiny plant about as big as a pea, known as a gametophyte. But gametophytes aren’t baby ferns. Instead, their job is to make eggs and sperm in specialized organs. When it rains or the environment is moist, that’s when ferns mate: Fern sperm swim away on a film of water to find eggs to fertilize. The fertilized eggs then grow into ferns.
---So, do ferns have seeds?
No, ferns don’t make seeds or flowers.
---+ Find a transcript on KQED Science:
www.kqed.org/science/1992380/watch-ferns-get-freaky
---+ More great Deep Look episodes:
The Secret Lives of Plants playlist:
czcams.com/play/PLdKlciEDdCQDqukAqdb99nhvMiJulSYxL.html&si=r6adLEy03FdHH7JK
Busy Bees and Other Pollinators playlist:
czcams.com/play/PLdKlciEDdCQCfoI8E24mbuk259unmiwG9.html&si=RD3TIO2qtNXvUoog
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#ferns
zhlédnutí: 192 771

Video

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zhlédnutí 208KPřed měsícem
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zhlédnutí 207KPřed měsícem
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Witness the Nighttime Magic of Spawning Coral | Deep Look
zhlédnutí 119KPřed 2 měsíci
Learn more about Surfshark VPN at: surfshark.deals/deeplook When the moon, sun and ocean temperatures all align, an underwater "snowstorm" occurs. Corals put on a massive spawning spectacle by sending tiny white spheres floating up the water column all at once. Join our community on PATREON! www.patreon.com/deeplook DEEP LOOK is an ultra-HD (4K) short video series created by KQED in San Francis...
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The Twisted Truth About Snake Tongues | Deep Look
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zhlédnutí 437KPřed rokem
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zhlédnutí 670KPřed rokem
Meet the Meat Bee... the Western Yellowjacket! | Deep Look
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zhlédnutí 385KPřed rokem
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zhlédnutí 469KPřed rokem
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zhlédnutí 346KPřed rokem
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Komentáře

  • @cleofaspingarron
    @cleofaspingarron Před 14 hodinami

    Even insects have Karens 😱 😢

  • @jaffarthamer6159
    @jaffarthamer6159 Před 15 hodinami

    You forgot bees

  • @thatoneasian5660
    @thatoneasian5660 Před 15 hodinami

    What if instead of Deep Look it was Freak Look and the plants just started shaking spores oiled up

  • @reeno1357
    @reeno1357 Před 16 hodinami

    Shrooms grow on 💩 so stop going into the woods and gather them and eat them. Shrooms are yuck

  • @gerardlales836
    @gerardlales836 Před 16 hodinami

    If it stinks throw it away...😂

  • @PrinceTaRiG
    @PrinceTaRiG Před 18 hodinami

    So there was someone who spend year watching and video recording animals just so we. Can watch videos has a feel close to nature

  • @Foxygrowy75
    @Foxygrowy75 Před 18 hodinami

    I have this rn

  • @MrGylangap
    @MrGylangap Před 18 hodinami

    Don't touch anything under surface of the sea..

  • @ivartheberserker9918
    @ivartheberserker9918 Před 19 hodinami

    Makes sense instead of buying mushrooms from the grocery store like a normal person she picks a death cap from the forest. Idiot.

  • @user-jh5gg1dz8n
    @user-jh5gg1dz8n Před 20 hodinami

    Penny sick cold fever chkpoox

  • @ChardMA8888
    @ChardMA8888 Před 22 hodinami

    “Solar Powered Creatures”

  • @faustozambrano4901
    @faustozambrano4901 Před 23 hodinami

    I was having lunch when this thing poped up. Thanks youtube

  • @jasonsinn9237
    @jasonsinn9237 Před dnem

    Now when I walk through a forest I'm going to wonder how much plant sperm I have on me 😬

  • @adrewfis925
    @adrewfis925 Před dnem

    10 Jesus answered and said to him, “Are you the teacher of Israel, and do not know these things? 11 Most assuredly, I say to you, We speak what We know and testify what We have seen, and you do not receive Our witness. 12 If I have told you earthly things and you do not believe, how will you believe if I tell you heavenly things? 13 No one has ascended to heaven but He who came down from heaven, that is, the Son of Man who is in heaven. 14 And as Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in Him should not perish but have eternal life. 16 For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life. 17 For God did not send His Son into the world to condemn the world, but that the world through Him might be saved.18 “He who believes in Him is not condemned; but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God (YHVH, El Shaddai, Adonai, God of Jacob, Isaac, and Abraham). John 3:10-18

  • @elizabethd5264
    @elizabethd5264 Před dnem

    Who eats mushrooms without identifying them

  • @Harry64278
    @Harry64278 Před dnem

    Hate to be that guy “why is no one talking about so and so”, but I scrolled forever and saw that no one mentioned about 2:48 when the scorpion picks up the grasshopper with its tail. That looked brutal

  • @collinalbicocco3025

    🦂

  • @jeffhays1968
    @jeffhays1968 Před dnem

    It's a toss up, which is more dangerous to your pet, the ticks or the poison pesticide the drug companies make and your vet shames you into giving your dog ? My dog died from the flea and tick meds, not from a tick. 1,000's of dogs die every year or are permanently damaged by flea and tick meds.

  • @i_am_say10
    @i_am_say10 Před dnem

    Grounded was pretty accurate

  • @KattySama-ch7it
    @KattySama-ch7it Před dnem

    SobhanaLlah

  • @theyreoutthere.huntinggear

    😂are the girls who ask about becoming a worm infected with these and they are afraid to break out and be judged or unloved. 😮

  • @vaiyt
    @vaiyt Před dnem

    Quit it with the overly dramatic american documentary music

  • @ThaStranger11
    @ThaStranger11 Před dnem

    Imagine if women lacked the ability to communicate. Ah crickets have it good. 😌

  • @Riv_Pup_Plush
    @Riv_Pup_Plush Před dnem

    POV:You go to the upsidedown but a Demogorgon is literally waiting for you there.

  • @HellWulfric
    @HellWulfric Před dnem

    The thumbnail made me hungry. And I really thought this was about some french toast variation.

  • @3066961
    @3066961 Před dnem

  • @OliEveryDayIsAnOliDay-ez2dy

    Lovely ❤

  • @mustafabhadsorawala9608

    1/2 = 3 Take that mathematics Biology 1 - Math 0

  • @robertcornelius3514

    I bet gay guys are loving this video.

  • @robertcornelius3514

    I bet gay guys are loving this video.

  • @blitzsturm5614
    @blitzsturm5614 Před dnem

    Aquariums* Wheres the water??

  • @m77x
    @m77x Před dnem

    Eren Yeager

  • @user-ge8bb6no8h
    @user-ge8bb6no8h Před dnem

    There sting hurts pretty bad

  • @jeholescain8565
    @jeholescain8565 Před dnem

    I was shock about the notification title until i red it again😂

  • @sourabh_mandlik
    @sourabh_mandlik Před dnem

    People have no idea how crazy the world is...😮

  • @PatrickBaptist
    @PatrickBaptist Před dnem

    LOL *butt flicker*

  • @Sunless1337
    @Sunless1337 Před dnem

    Intelligent design showcased so well. No shot this was all aimless random mutation and natural selection. 😂

  • @FrmDaRivr2DaCPale5tineWillBFre

    ( indeed Allah do not timid to present an example of a mosquito so what is above [ over ] it And those who have believed know that it is the truth from their Lord. But as for those who disbelieve, they say, "What did Allah intend by this as an example?" He misleads many thereby and guides many thereby. And He misleads not except the defiantly disobedient ) [ Qur'an 2 : 26 ]

  • @YipJumpMusic
    @YipJumpMusic Před dnem

    cute reptilians

  • @Wobblescam-2
    @Wobblescam-2 Před dnem

    What happens if it drowns?

  • @relyndie
    @relyndie Před dnem

    That is absolutely disgusting

  • @user-iq6mi8pn3q
    @user-iq6mi8pn3q Před dnem

    “Why is this scientist hitting this bush?” I dunno man, I always assume scientists are up to some goofy stuff

  • @Spenceham-km3nv
    @Spenceham-km3nv Před dnem

    what if someone used insatiable bull frog chromosomes and the sea cucumber chromosomes in our earthworms

  • @AbuLahab555
    @AbuLahab555 Před dnem

    My backyard has a retaining wall that is full of these

  • @crosswordboss
    @crosswordboss Před dnem

    🐛Take me to your Leader! 📡

  • @hydraa6646
    @hydraa6646 Před dnem

    Wth is knee grow?

  • @bugloverspiderlover8490

    I’m currently raising two of these,had three,one appears to have been cannibalized,no sign of it anywhere. And the other two are super fat,despite the fact they get tons of food.

  • @PissedoffChristian

    Bruh....

  • @Bumblesnitch
    @Bumblesnitch Před dnem

    Just destroyed one of these in my aquarium. It did not regrow. 😂

  • @xtrmz8191
    @xtrmz8191 Před dnem

    The way he polishes it's driller😂