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Why Hammerhead Sharks are So Sick (ft. Bertie Gregory) | Lindsay Nikole

Lindsay Nikole | June 10, 2026



Hammerheads aren’t just weird-looking their hammer-shaped head is one of evolution’s most brilliant designs. Discover how their cephalofoil gives them a supercharged electroreception system that can detect prey buried in sand across a wider field than any other shark. But these iconic predators are in serious trouble. Wildlife filmmaker Bertie Gregory (National Geographic, Emmy winner) joins the channel fresh from filming scalloped hammerheads off the Baja Peninsula in Mexico once a hammerhead mecca, now a conservation battleground. Plus, meet Chocolate Chip, a massive oceanic manta ray with a bubble bath addiction, and find out why there might actually be hope for one of the ocean’s most misunderstood apex predators.

A huge thank you to NatGeo and Bertie for making this possible!

Follow National Geographic:
YouTube → @NatGeo
Facebook → https://www.facebook.com/natgeo
Instagram → https://www.instagram.com/natgeo
TikTok → https://www.tiktok.com/@natgeo

Follow Bertie Gregory:
Instagram → https://www.instagram.com/bertiegregory
Facebook → https://www.facebook.com/p/Bertie-Gregory-100044218067114/
Tiktok → https://www.tiktok.com/@bertiegregory

Oh! And I wrote a book, so definitely make sure to grab it—Epic Earth out now!
Order Here: https://a.co/d/54fdZqI

#LindsayNikole #hammerheads #seacreatures #hammerheadshark

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ABOUT LINDSAY NIKOLE
Join zoologist Lindsay Nikole for vivid stories about evolution, animal behavior, and the wonderfully weird life around (and before) us. Each video dives into creatures you’ve never met and facts you’ll never forget, blending science with humor, visuals, and memorable explanations. From viral mystery IDs and prehistoric deep dives to myth-busting and conservation context, this channel makes complex biology easy and exciting to understand.

Follow Lindsay Nikole here:
Order Lindsay’s new book: https://geni.us/EpicEarth?brid=yl-xFobehfULq0HItSrw1g
Instagram: https://www.instagram.com/lindsay_nikole
Facebook: https://www.facebook.com/LindsayNikoleTheZoologist
TikTok: https://www.tiktok.com/@lindsaynikole
Spotify: https://open.spotify.com/album/2IDSBorwoeXSD3r67kFTQH?si=Mb2Dg1fgRXWZQzfIzSqgmg&nd=1
Merch: https://www.lindsaynikole.com

Chapters
00:00 Hammerhead’s Explained
00:30 Welcome and Hello! “Bertie Gregory”
02:19 Baja Hammerheads From Thriving Hub to Falling Numbers
03:35 Hammerheads in Baja: Kind, Size, Features, and Behavior
04:47 Tracking and Protecting Hammerheads in Mexico
06:18 Hammerheads as Apex Predators & Ecosystem Keystone
08:05 Chocolate Chip the Manta: Bubble-Loving Giant in Baja
11:29 Watch “Hammerhead Sharks” with Bertie Gregory on Disney+

Why Hammerhead Sharks are So Sick (ft. Bertie Gregory) | Lindsay Nikole
https://www.youtube.com/channel/UCrc2iv2-G1FZ3VscM3zu2jg

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Written by Lindsay Nikole

Comments

This post currently has 50 comments.

  2. @Fenriswaffle

    June 10, 2026 at 12:54 am

    While its cool to see the trailer and neat that you get noticed by the big sempais, this video ended up having barely any information about the species it was supposed to be about, heck it ended up having more info about a particular Manta Ray (which is cute yes but still). It just kinda felt like a full-video ad for the upcoming series they're doing.
    Naturally this isn't "selling out" since its pretty relevant, just kind of missing most of what you'd expect from the video. I do hope you make a video expanding on Hammerheads if possible, but its your channel. I'm not even a day 1 comment lmao.

  12. @LeoDomitrix

    June 10, 2026 at 12:54 am

    Hammerheads fascinate me. That configuration is utterly nonsense, but there they are, just like a platypus or, well, a human. We aren't built to live if you think about it logically and yet… life there is, in ways that work, just don't meet standards of "best design". It's so cool.

  14. @MrLightningbob

    June 10, 2026 at 12:54 am

    Still think it would be fun to see Lindsey colab with Aron Ra on a subject, possibly snakes or the like. Though that may be a lot of black being worn in one vid. ^_^!

  15. @TreyPhantom0

    June 10, 2026 at 12:54 am

    I've always loved these dudes, and not enough people talk about them….plus I'm pretty sure there's a game where one of the bosses uses a hammerhead shark as a well hammer.

  16. @ShaneWalta

    June 10, 2026 at 12:54 am

    I think Bertie has the demeanour and presenting style to be able to take over the baton from Sir David Attenborough when that time comes. Hopefully not for many years though.

  23. @Sheila-G

    June 10, 2026 at 12:54 am

    We are moving in exalted circles 😂🎉love Nat Geo and the trailer looks great. Love watching you grow on your channel and as a person! ❤

  28. @CorwinFound

    June 10, 2026 at 12:54 am

    I've had shark fin soup a number of times. This was a several decades ago with my then partner whose parents owned a high end Chinese restaurant. I thought "shark fin" soup was kinda like "100 year old eggs." A colloquialism that included no sharks because that seemed kinda impossible to me. And boy was it amazing! Not fishy at all, so confirmed, no sharks.

    Years later I realized that it did in fact include shark fin, harvested in the most cruel and wasteful way possible. I've always felt guilty about that and have given money a few times to various shark conservation organizations. And comment on videos like this.

    It was bad that 30 years ago we were doing this to these wonderful and vulnerable creatures. That we are still doing it is a crime against nature with all that we know.

  30. @ivytarablair

    June 10, 2026 at 12:54 am

    Lindsay, this was awesome!! I love it! You get to chat with and help cross-promote with ever bigger and cooler and far flung creators and scientists and it's fantastic! 🎉🎊🎆

  33. @TheprophecyswiftieT.V

    June 10, 2026 at 12:54 am

    i feel so special seeing this trailer as one of the first 63k to see it, its a big number, and im very happy that lindsay has gotten enough recognition for nat geo to air a trailer for the first time on her channel, thats INSANE

  34. @Sinister_Star

    June 10, 2026 at 12:54 am

    Hey y'all, National Geographic is owned by a neo-nazi (google Vincent Bolloré), please, if you can, avoid consuming any National Geographic media (or stream illegally if you do).

Comments are closed.

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