yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Camo Sharks: Breaching Test | SharkFest | National Geographic


2m read
·Nov 10, 2024

RYAN JOHNSON: One of the most important tests that we're going to do is the breaching test.

GIBBS KUGURU: Breaching is sort of this ambush attack. They need speed, power, stealth.

RYAN JOHNSON: This is when we're going to be able to measure the color of the great white shark in its ultimate hunting mode.

NARRATOR: In the middle of Mossel Bay sits Seal Island.

RYAN JOHNSON: This island's the epicenter for great white sharks in South Africa.

NARRATOR: Every day, hundreds of fur seals swim for their lives through a gauntlet of great whites.

RYAN JOHNSON: The great white sharks' success rate in hunting Cape fur seals is almost 50%, and that's really high for any predator. So with these shocks I got very specific areas where they want to hunt and patrol, and it's usually right underneath the natural routes that the seals are exiting and entering the islands.

NARRATOR: Ryan and Gibbs are towing a decoy seal in the hopes of encouraging sharks to breach.

RYAN JOHNSON: It's about trying to capture the breaching shark alongside a color board and being able to measure the color of that breaching shark.

NARRATOR: It's a quiet morning, but Seal Island rarely disappoints.

GIBBS KUGURU: Oh, there's a predation. Natural predation right over there. Oh, it's still going for it. Oh, [INTERPOSING VOICES]! Oh. Isn't this hot?

RYAN JOHNSON: This is in trouble.

GIBBS KUGURU: Yeah. He's using the boat for cover.

RYAN JOHNSON: And even though the shark missed on that first breach, it scared that seal so much, and it's now hiding around the boat, using it for cover.

NARRATOR: The seal leads the shark right to the decoy.

MAN: Woo.

GIBBS KUGURU: Oh, yes!

RYAN JOHNSON: Got it. Got it.

GIBBS KUGURU: [INAUDIBLE] one there.

NARRATOR: The shark and the color board are clearly in frame. It's the first successful breach of the experiment.

GIBBS KUGURU: It sends goose bumps down my spine every time. I mean, you just can't help but feel emotional every time you see it.

NARRATOR: Sharks are here in numbers.

GIBBS KUGURU: Oh.

RYAN JOHNSON: There we go.

NARRATOR: Stalking seals all day long.

GIBBS KUGURU: It's having a go at it. Woo.

NARRATOR: As the sun sets after a day of data collection, the team hopes for one last breach.

RYAN JOHNSON: Hit that spot. Hit that spot.

GIBBS KUGURU: Oh, ho.

RYAN JOHNSON: Oh, we've lost the color board. We've lost the decoy. Because it's so dark, the shark couldn't even see which way to go. He's going for it again.

[SOFT MUSIC PLAYING]

More Articles

View All
Impostor Syndrome: What Is Your Worth?
Hi there. We’ve been looking for you. Yes, you. We know everything about you: how you’ve pretended to know things you have no idea about, how you’ve slept through years of your education, how you’ve received awards that you never deserved, and how you’ve …
Celsius Made His Thermometer Upside Down
DEREK: How did Celsius define his scale? MICHAEL: Uh… He took the temperature water freezes at and said that’s zero and then he took the temperature it boils at and says that’s a hundred. And he figured a hundred was a good amount of demarcations to make…
How Dax Flame Became Famous
After I graduated high school, I acted in movies. I acted in Project Decks, so then I got recognized from that, but mostly from 21 Jump Street, which I acted in the following year. So after they were released, I went and traveled a lot, and I wrote a boo…
Ample reserves regime | AP Macroeconomics | Khan Academy
What we’re going to do in this video is talk about some interesting things that have happened since 2008. In particular, we’re going to talk about what an ample reserves regime is but even more importantly what its actual implications are and how you can …
Early Medieval Trade | World History | Khan Academy
In this video, I want to start to answer the question of how did the environment and how did political factors impact trade. That is a really big question that we’re not going to answer in one video, but I want to use a specific example to illustrate the …
Buffer range | Acids and bases | AP Chemistry | Khan Academy
Buffers consist of a significant amount of a weak acid, which we will represent as H A, and the conjugate base to the weak acid, which we will represent as A minus. Buffer solutions resist large changes in pH; however, buffers are only effective over a ce…