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Tonic Immobility in Tiger Sharks | SharkFest

September 17, 2019

Welcome to Tiger Beach. NARRATOR: Eli recognizes
some of the tigers, but one shark stands out. Her swift movements keep
Eli and Matt on their toes. [grunt] Whoa! NARRATOR: They
name her Jitterbug. Time and again, Eli
must risk a bite to redirect her with his
expert handling skills. [bleep] Yeah, she definitely
has the personality. [bleep] NARRATOR: Jitterbug’s
persistence and curious nature make her a good candidate
for an accelerometer. All right, let’s try
to get a tag on her. Yeah, let’s see where she’s
going and what she does. Did you get it on? Nope, not that one. Let’s do it again. NARRATOR: Jitterbug
is too quick for Matt to safely attach the tag. [grunt] Yeah, she’s
a bit too [inaudible] so we’re going to have to see
if we can settle her down. NARRATOR: Eli has an
idea to help her relax. He’ll put her in a state
of tonic immobility. What I’m going to
do, Matt, is I’m going to rub her nose a little bit. NARRATOR: Around the head and
underside of a shark snout lay small
electroreceptors called the ampullae of Lorenzini. They help sharks detect minute
electrical impulses from prey and are extremely
sensitive to touch. By stimulating
these sensors, Eli is able to calm
Jitterbug and cause her to enter a trance-like state. Here we go! NARRATOR: Eli releases her. This gives Matt a
chance to make his move. You just had it! Yes, it’s on. Awesome!


  • Reply 〤FunkyFish〤 July 24, 2017 at 8:02 pm


  • Reply #savage #Black #Kid #cx July 24, 2017 at 8:30 pm

    Greenland Shark.

  • Reply Mat X July 24, 2017 at 8:31 pm

    How Old is the oldest shark?

  • Reply Young Tasty July 24, 2017 at 8:34 pm

    The balls on these divers

  • Reply 123 G July 24, 2017 at 8:34 pm

    Shark.exe has currently stopped working

  • Reply The Abyss July 24, 2017 at 9:14 pm

    This is so cool, wonder how intimidating it would be with them all around

  • Reply John Allan July 24, 2017 at 10:10 pm

    Eli Must

  • Reply Storming Doggo July 25, 2017 at 1:17 am

    Am I the only one who thought the shark was kind of cute??

  • Reply Gobby Hong July 25, 2017 at 2:57 am

    waoh… that is amazing~!

  • Reply Jaden July 25, 2017 at 5:51 am

    A video on tonic immobility would be neat. Not really within the theme of this channel though.

  • Reply Kevin Qerimi July 25, 2017 at 11:32 pm

    Wow man truly amazing wish I get to do stuff like this when I'm older

  • Reply Zork Mid July 29, 2018 at 9:20 am

    Will the tag become a problem as the shark grows?

  • Reply Phillip Young August 2, 2018 at 3:44 pm

    You would have to pay me Steph Curry's, KD' s, James Harden's and Kevin Love's salaries to put a tag on Jitterbug or any other shark down there.

  • Reply Omar Bgn August 8, 2018 at 5:36 pm

    that's incredible

  • Reply Mark Mable September 1, 2018 at 12:32 am


  • Reply Peasant September 16, 2018 at 10:49 am

    "It's… it's not like I wanna eat you, baka senpai!"

  • Reply John Thomas September 19, 2018 at 4:45 pm

    these divers are either brave or very stupid, I know the average person would never get in and play with sharks

  • Reply Jru Wilkerson January 28, 2019 at 12:19 am

    Now I can swim with sharks

  • Reply Brandon April 12, 2019 at 6:07 am

    My question is how did humans discover this phenomenon lmao

  • Reply Bag O'chips May 13, 2019 at 8:17 pm

    0:32 shark swimming sideways in top right, yeet

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