Hi, you're about to get smarter in just a few minutes with Curiosity daily from

Curiosity.com. I'm Cody Goff, and I'm Ashley Hamer, and it's Shark Week!

Today, Special Guest Forest Galante, host of extinct or alive on animal planet,

will explain how we search for lost species in the open ocean.

Then you'll learn about the two types of nostalgia and how they can

influence your well-being. Let's satisfy some curiosity. I don't know about you but I feel it could be pretty hard to find animals from

species that are supposedly extinct, let alone ones that are in the ocean.

That's kind of a big place after all. But that's exactly what Forest Galante did

earlier this week on his Shark Week special, Extinct or Alive, Land of the Lost Sharks.

And today he's going to help you understand just how he does what he does,

underwater.

We asked Forest, what do you do?

Just throw a dart on a map and go dive there?

Well, no, it's a bit more strategic than that.

Here's Forrest.

It's very targeted and we narrow it down.

So take, say, the white-tibeaske, for instance, right?

We take, where was the last reported sighting?

Doesn't matter if it was 100 years ago, right?

It was in this region.

So we know that's the region.

Okay, what is the sharks family?

...