macaw and you live in the Amazon rainforest. Life is pretty good, you have all

the fruit you want, but there's one problem. You don't get all the nutrients that you need

out of that fruit. So how do you do that? So to answer that question today

I've traveled over four days, most of that being in the Amazon rainforest

with an outfit called Rainforest Expeditions, and this is our final boat ride.

So we're gonna get in this boat, and we're

gonna go up river here at the Tambopata River. Gerson's gonna go with us.

He's helping me haul some photo gear. You're getting Smarter Every Day.

[ Music ]

Gracias Señor.

So I'm in a boat full of researchers here at the Tambopata

Research Center and we are about to go check out exactly how these macaws

handle the nutrient problem.

[ Music ]

Let's go to the main spot first,

and then we see how activity goes in the beginning, OK? (Destin) OK, sounds good.

[Music & rainforest bird sounds]

So this guy right here is in charge.

He hasn't said a word to me since I've been here. He's in the zone. He's got a clipboard,

so you know he's legit. Talk now or talk later? - Talk later. [ laugh ]

Talk later. Got it. I told ya, he's busy doing science,

don't mess with the man. OK so that spot of dirt,

right over there is the largest clay lick in the world. Here at the Tambopata Research Center,

researchers come from all over just to watch this spot of dirt.

Macaws, parrots and other birds come in and they eat the dirt and that gives them the

nutrients they need. So today we've brought a high speed camera and we're gonna try to capture the macaws

doing this. Should be pretty cool.

[ Music ]

OK one thing that the birds do

that we don't really understand yet is called flashing. It's when a bunch of them pile up on the

clay lick and then all of a sudden boom, all of them release at one time. So hopefully

I can give this high speed video to the researchers and they can use it.

It's a flash.

[Music]

(Gustavo Martinez) [in Spanish] Here we have the times,

and the different sections of the clay lick, the weather and the different species.

OK so I'm home now, but I can't stop thinking about why a macaw would eat dirt.

Well, between all my scratching of bug bites, I contacted the Schubot Center

for exotic bird health at Texas A&M University and spoke with a guy named Dr Don Brightsmith.

For the past few decades the theory's been there's toxins in fruit in the jungle

and that the birds are eating this clay to neutralize the toxins. But research by

Dr Brightsmith suggests that it has more to do with sodium and how rain falls on the continent in South America

in general. So if you begin to look at South America you can understand why this happens. On the west

side we have the Pacific Ocean on the east side we have the Atlantic Ocean so it makes sense that the

evaporation would create rain and create the Amazon rainforest. But, that's not what happens.

If you look at a satellite image it's easy to see, but the Andes mountains actually

cuts off the moisture before it gets over to the Amazon rainforest.

In fact, most of the stuff to the west of the Andes is pure desert. This means that most of the moisture

in the Amazon rainforest comes from the Atlantic side of the continent. So as moisture

evaporates here in the Atlantic Ocean, it begins to deposit it's minerals as it

crosses the continent. And by the time it gets here to eastern Peru most of the minerals

have leeched into the soil because it's gone through the hydrological cycle several times.

Dr Brightsmith and his team analyzed the clay that the macaws are eating at the Tambopata Research Center

and they discovered that there's much higher concentrations of sodium. So there you go.

That's why clay licks exist. So I hope you enjoyed the video. I had to spend some time away from

the family in order to do it, but I hope it was worth it for you. If you would please consider

subscribing and check out the links in the video description below I'd appreciate it. You're getting Smarter Every Day.

Have a good one. Don't eat my passport. You can't eat my passport.

[ laughs ]

Get back in the boat.

Why aren't you doing anything? - I don't know what to do.

[ laughs ] And that's how we got the high speed camera to the jungle.

Right there. I don't have a lens

that can reach way over there, so Jeff the high resolution

photographer here at Rainforest Expeditions, he let me borrow his

600mm lens, so that's what we're doing. - So I'm looking forward to taking this

sound and pitching it down, and turning them into scary parrot monsters.

(Destin) [ laughs ] What?!

- What, do you think we're recording wildlife for wildlife?

So today we're in Peru. It's pretty awesome. We've assembled a team of people

who are gonna capture Macchu Piccu in the highest resolution photo that's ever been made of it.

Got a special panoramic robotic camera mount.

We've got all kinds of cool stuff.

[Music]

[ Captions by Andrew Jackson ] captionsbyandrew.wordpress.com

Captioning in different languages welcome. Please contact Destin if you can help.