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
Scaling Growth | Gustaf Alstromer, YC Partner (formerly Airbnb) & Ed Baker (formerly Uber)
What’s pretty cool is a few guys who have been living the centre of building up these growth teams kind of for the past, you know, seven or eight years. Edie joined Uber to start the growth team when it was five people, and then over the three and half ye…
LearnStorm and Ceiba College Prep
[Music] Watsonville, California, is an agricultural community. We have 98% of our students who are Latino, and about 90% of our students speak Spanish as their first language. Teachers cannot do their job alone; they need to have resources because every c…
Khan Academy Ed Talks with Begoña Vila, PhD - Thursday October 13
Hello and welcome to Ed Talks with Khan Academy. I’m Kristen Deserva, the Chief Learning Officer at Khan Academy, and today I’m excited to welcome Dr. Begonia Villa, who is an astrophysicist and the lead systems engineer for two of the instruments on the …
LearnStorm Growth Mindset: Khan Academy's math content creator on learning strategies
I’m Jeff Dodds. I’m a math content creator here at Khan Academy. I had a fixed mindset for a really long time. I was convinced that I was a math person and I was smart and I was just good at math. So, I remember the first time I really struggled. I was t…
Economic profit for a monopoly | Microeconomics | Khan Academy
In this video, we’re going to think about the economic profit of a monopoly firm. To do that, we’re going to draw our standard price and quantity axes. So, that’s quantity and this is price, and this is going to of course be in dollars. We can first thin…
Mean and standard deviation versus median and IQR | AP Statistics | Khan Academy
So we have nine students who recently graduated from a small school that has a class size of nine, and they want to figure out what is the central tendency for salaries one year after graduation. They also want to have a sense of the spread around that ce…