To us, water striders are almost magical. I mean, come on, they’re literally walking
on water. But come down to their level and it’s a
bit more… sinister. These delicate little bugs have figured out
how to master the elements – and to exploit those who can’t. So how do water striders float where others
sink? The answer is those crazy long legs. Water is pretty sticky stuff. It likes to hold onto itself. It sticks together especially well right at
the surface. If you’re small, it can actually hold you
up, as long as you don’t break through that surface tension. It seems like the water strider’s legs would
just sink right in. But they don’t. They make dimples on the surface. That’s because their legs are covered in
tiny hairs called micro-setae that repel water. The strider’s entire body is covered in
them. Those hairs trap a layer of air that keeps
the water from sticking to its body. The water strider simply can’t get wet. That’s how they can sit on top of the water
without breaking through. Plus they’re pretty light and they spread
out their weight with their front and back legs. They use their middle pair of legs to maneuver,
by pressing down and back against those dimples. Just like rowing a boat. They can even catch some air. Most of their fellow insects aren’t quite
as graceful. Like this caddisfly. Struggle as it may, it’s stuck.. half-drowned… Exactly what the water strider has been waiting
for. It probes for a weak spot And pierces through – spitting digestive enzymes
in that dissolve its victim from the inside. Then the striders take their time sucking
out the innards. Leaving the caddisfly a dried-out husk. The stream delivers an endless buffet of new
victims. Because for most, that razor-thin line between
water and air is a treacherous place. But water striders know: keep your feet dry and you’ll always have
the upper hand. Hey there, it’s Lauren. I know you see that subscribe button there. Here’s what it’ll get you – new Deep Look
episodes every two weeks. Keep up with all the weird, gross and wonderful
things we’re working on. Thanks and see you soon.

This Is Why Water Striders Make Terrible Lifeguards | Deep Look
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100 thoughts on “This Is Why Water Striders Make Terrible Lifeguards | Deep Look

  • May 23, 2018 at 12:48 am
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    Argh! It's a mayfly and not a caddisfly. Guess I was moving to fast on this one. The creek is full of caddisfly larvae and I assumed incorrectly that the adult was one too. Thanks for the catch. Glad you like the episode otherwise. – JoshC

    Reply
  • July 16, 2019 at 10:30 am
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    everything changed when the Fire Nation attacked.

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  • July 16, 2019 at 2:34 pm
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    There are the Jesus Christ of bugs

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  • July 16, 2019 at 9:48 pm
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    a

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  • July 17, 2019 at 12:10 am
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    AROOOUUUUU

    Reply
  • July 17, 2019 at 11:04 am
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    I Fear No Man…
    But That Thing
    Water Striders
    Its Scare's Me

    Reply
  • July 19, 2019 at 5:49 am
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    Hey, remindes me of this super hair guy on the beach who belly slide on the water, it was funny till that kid started drowning

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  • July 19, 2019 at 10:56 am
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    try dumping a bucket of water on em

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  • July 19, 2019 at 11:40 am
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    Well yeah they can't carry me

    Reply
  • July 19, 2019 at 8:55 pm
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    I always chase these bugs when I was young during I'm swimming at waterfall it funny tho😂😂 I murdered them too

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  • July 20, 2019 at 5:28 am
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    At 0:23 you can see it casting its water walking Jutsu smh

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  • July 20, 2019 at 4:34 pm
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    Can I put some mirco-setae on my legs?

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  • July 20, 2019 at 6:00 pm
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    1:39, water striders simply can't get wet….😏

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  • July 21, 2019 at 1:25 am
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    If you dont swim between the flags you're fair gsme according to the water slider.

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  • July 21, 2019 at 3:02 am
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    i didnt know jesus was a bug

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  • July 21, 2019 at 11:32 pm
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    so thats where half life 2 got the striders from

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  • July 22, 2019 at 1:47 am
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    more than 1 decade ago, when we still kid. my friend eat this when still alivr, he only eat the body without leg.

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  • July 22, 2019 at 2:01 am
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    My recommendations are getting out of hand

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  • July 22, 2019 at 9:34 am
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    So this is what inspired the developers of Half-Life 2 to make actual Striders in the game, but Land-Version.

    Reply
  • July 22, 2019 at 6:15 pm
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    does that mean jesus had very hairy feet?

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  • July 23, 2019 at 11:23 am
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    Jesus bug Jesus bug

    Reply
  • July 24, 2019 at 3:30 am
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    Bettle: help i cant swim
    Water strider: Im coming to save you

    Water strider touch bettle
    Bettle is saved 🙂

    Reply
  • July 24, 2019 at 3:47 am
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    Guys… You should hire zefrank1 his way funnier and less boring…

    Reply
  • July 24, 2019 at 4:51 am
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    Striders are like vampires

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  • July 25, 2019 at 4:38 am
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    I LOVE HOW SIMPLE YOU GUYS EXPLAIN SCIENCE

    Reply
  • July 25, 2019 at 3:27 pm
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    God is amazing

    Reply
  • July 26, 2019 at 11:04 am
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    i really want the hairs on my feet

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  • July 26, 2019 at 3:54 pm
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    Water Striders are literally bug jesuses

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  • July 26, 2019 at 6:57 pm
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    So water striders are mini jeezus?

    Reply
  • July 26, 2019 at 9:14 pm
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    “Water Striders make terrible lifeguards” okay but when did I ever think a tiny bug could be a lifeguard?

    Reply
  • July 27, 2019 at 7:10 am
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    Me and water have a lot in common

    Reply
  • July 27, 2019 at 11:05 am
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    bro these hackers out here in the servers are using jesus hacks to get across land more easy smh

    Reply
  • July 27, 2019 at 11:23 am
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    Next title:

    "There's A Reason Why Wilderbeests Can't Climb Trees | Deep Look"

    Reply
  • July 28, 2019 at 1:22 am
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    Surface tension bows under their weight; anything trapped in the water acts like a ball on a trampoline in response to your weight bending the tensioned fabric: even if the Water Strider didn't want to eat something, it'd still end up with the thing in its lap.

    Reply
  • July 28, 2019 at 10:17 am
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    Wow.. my whole life ive been calling them water spiders.. 😑

    Reply
  • July 28, 2019 at 6:07 pm
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    Sounds like the fire nation if you ask me.

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  • July 28, 2019 at 10:18 pm
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    What if we make a suit/shoes out of this?!

    Reply
  • July 28, 2019 at 11:38 pm
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    Human: SOMEONE HELP, MY KID CAN'T SWIM AND I CAN'T EITHER SO I CAN'T GO IN AND SAVE HIM!
    Water Strider: Glides over to kid
    Human: ARE YOU A LIFEGUARD?!
    Water Strider: Yes.
    Human: THANK YOU SO MUCH!
    Water Strider: Eats dead kid
    Human: …

    Reply
  • July 29, 2019 at 8:12 am
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    l o n g l e g s

    Reply
  • July 30, 2019 at 3:47 am
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    They have mastered the art of hamon

    Reply
  • July 30, 2019 at 10:55 pm
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    Seems like a great engineering challenge. Imagine how fast a boat could go w/so little friction.

    Reply
  • July 31, 2019 at 1:43 am
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    they are bending water

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  • July 31, 2019 at 3:38 am
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    of course they made horrible lifeguards, look at their size!

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  • August 1, 2019 at 3:23 am
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    Ummmm thats a mayfly ma'am

    Reply
  • August 1, 2019 at 4:01 am
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    I like to call these bug Jesus

    Reply
  • August 3, 2019 at 10:25 pm
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    Can it float of you put a drop of soap in the water and break the tension

    Reply
  • August 4, 2019 at 5:59 pm
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    If only Peter had more faith like this bug here lol

    Reply
  • August 4, 2019 at 7:57 pm
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    Jesus returned as a bug

    Reply
  • August 5, 2019 at 7:33 am
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    daddy long legs
    wet long legs

    Reply
  • August 5, 2019 at 9:54 am
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    Boogers

    Reply
  • August 6, 2019 at 10:13 pm
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    I’m fishing right now and I can see them and I want to know can they walk on land

    Reply
  • August 8, 2019 at 4:03 am
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    I saw a spider walking on fu—ing water and, I’m 100% sure that was not a water spider.
    Edit: Think it was Jesus..

    Reply
  • August 8, 2019 at 7:00 am
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    "I KNOW you see that subscribe button there"

    Just put all of us in check

    Reply
  • August 8, 2019 at 1:56 pm
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    Seeing thos hairs KILLS ME TO DEATH! 😱😱😨😰😵

    Reply
  • August 9, 2019 at 3:04 am
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    Well.. I mean.. it's not so bad when you think about it. The water strider's only hungry, I mean, we all need to eat at some point.

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  • August 11, 2019 at 6:08 pm
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    You guys are wrong,
    The water strider concentrated chakra on their feet to stay afloat

    Reply
  • August 11, 2019 at 6:31 pm
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    2:05
    When you reach 100 in acrobatics

    Reply
  • August 12, 2019 at 2:44 am
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    I love this channel ! I like learning about insects they are actually really cool.

    Reply
  • August 12, 2019 at 3:35 am
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    Keep your feet dry to have the upper hand…?

    Reply
  • August 13, 2019 at 2:42 am
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    Keep yourself dry, and you won’t die.

    Reply
  • August 13, 2019 at 6:43 pm
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    Ladies quit shaving your legs that’s why you can’t walk on water

    Reply
  • August 14, 2019 at 7:06 pm
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    Things basically a spider

    Reply
  • August 15, 2019 at 12:51 am
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    Holy water bug

    Reply
  • August 20, 2019 at 5:10 am
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    Very interesting

    Reply
  • August 22, 2019 at 1:26 pm
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    usually, when you get in water as an insect, you cant get out

    Reply
  • August 22, 2019 at 3:01 pm
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    This could be the most irrelevant bug video I've watched to date

    Reply
  • August 23, 2019 at 7:47 am
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    "honey are you wet yet?"
    Water strider: "not a chance"

    Reply
  • August 24, 2019 at 6:00 am
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    Lol I never thought of water being sticky

    Reply
  • August 25, 2019 at 7:16 am
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    So they swim!

    Reply
  • August 28, 2019 at 12:25 pm
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    jesus bugs.

    Reply
  • September 1, 2019 at 5:56 am
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    STRIIIIIIIIIDEEEEEEEER!!!

    Reply
  • September 1, 2019 at 7:20 am
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    sexy leg-

    Reply
  • September 1, 2019 at 4:47 pm
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    How do they lay their egg??

    Reply
  • September 2, 2019 at 1:27 pm
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    well I just realized I actually have these bugs in my outdoor pond, I would catch them as a young kid and it was a lot of fun I don't know why

    Reply
  • September 2, 2019 at 1:59 pm
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    Me everytime I see animals eating each other: *FLASHBACK OF THAT SONG IN THE LION LING*

    Reply
  • September 6, 2019 at 12:25 am
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    2:21 Strider: ooOoooOo luuunnnch has come Oh its always make best move to trap them with pure wattah..

    Reply
  • September 6, 2019 at 2:22 am
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    I love water striders sm and all bugs

    Reply
  • September 8, 2019 at 2:16 am
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    Since water striders have hair that makes them mammals

    Reply
  • September 8, 2019 at 11:16 am
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    was it design?

    Reply
  • September 13, 2019 at 12:34 pm
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    So you put water repelent daddy long legs and you get a water strider

    Reply
  • September 17, 2019 at 2:12 pm
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    oh no there multiple Jesus

    Reply
  • September 17, 2019 at 3:37 pm
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    You mean JESUS BUG

    Reply
  • September 18, 2019 at 11:44 am
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    What if humans has a abilite like a water spider

    Reply
  • September 20, 2019 at 10:17 am
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    So thats how you got fired.

    Reply
  • September 20, 2019 at 7:27 pm
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    Can scientist take some water striders for some experiments so that they could invent something close to this?

    Reply
  • September 20, 2019 at 11:48 pm
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    The jesus bug

    Reply
  • September 21, 2019 at 11:50 am
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    The tuxedo ???

    Reply
  • September 21, 2019 at 8:09 pm
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    They haven’t “figured out”, they evolved.

    Reply
  • September 22, 2019 at 12:38 am
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    so they have water proof shoes

    Reply
  • September 22, 2019 at 1:54 am
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    Puts soap

    Reply
  • September 22, 2019 at 1:55 am
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    HOW A SPIDER CLIMBS ON WALLS: tiny hairs
    HOW WATER STRIDERS WALK ON WATER: TINY HAIRS
    ITS NOT TINY HAIRS, ITS DUCKIN CHAKRA.

    Reply
  • September 22, 2019 at 8:37 am
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    02:31 imagine if bugs could scream

    Reply
  • September 25, 2019 at 5:17 am
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    Skodododle i will eat ya

    Reply
  • September 27, 2019 at 12:27 am
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    They didn't figure it out, natural selection allowed them to be what they are, they just do what they are both to be selected for.

    Reply
  • September 27, 2019 at 7:43 am
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    Do y'all think we need the hairs to walk on water like Jesus?

    Reply
  • September 28, 2019 at 3:41 am
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    Pond skaters

    Reply
  • September 29, 2019 at 6:13 pm
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    Does anyone thinks about that spiders from Super Mario 64 ?

    Reply
  • October 1, 2019 at 12:15 am
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    They have mastered their Hamon breathing.

    Reply
  • October 1, 2019 at 1:37 pm
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    Now we know how Jesus walked across water

    You just need very hairy feet

    Reply

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