Frogs Come Alive After Winter Thaw | National Geographic

less than 1m read

·Nov 11, 2024

NARRATOR: While the rivers and ponds are melting, the ground remains frozen. And under the leaf litter, someone is pulling off a miracle. [intriguing music] This wood frog is frozen solid. Even his eyes are iced over. There's no pulse, no breath. Slowly the warmth of spring begins to thaw, from the inside out. His heart starts beating. [dramatic music] His brain lights up-- [intriguing music] -- and he begins to move. It turns out that the frog's liver pumped a syrupy, natural antifreeze into his cells in the fall. It kept his organs from freezing. Only the water between cells froze. After eight months frozen, he's completely undamaged, and leaping straight for the nearest pond. [water splashing] Now, Alaska's least welcome yearly arrival slowly bursts from its watery home-- the mosquito. [intriguing music] And it immediately wants blood. Not even cold-blooded frogs are immune. The number of mosquitoes here far outstrips that in any jungle on earth. [music continues] [water splashing] [mosquitoes buzzing]

Uranium: Twisting the Dragon's Tail

Getting started with Khan Academy Kids

View All

Lungs 101 | National Geographic

[Narrator] Breathe in, breathe out. With every breath, the body is replenished and cleansed. A process made possible by two of the body’s most important and delicate organs. The lungs are two major components of the respiratory system. Soft, light, and …

YOU LIVE IN THE PAST

Hey, Vsauce, Michael here, and today we are going to be talking about the past. But not like history—in fact—we will be talking about what we call now. This very newest moment in time, and the fact that we can never really be aware of or live in what we c…

Consumer credit unit overview | Teacher Resources | Financial Literacy | Khan Academy

Hi teachers, Welcome to the unit on consumer credit. So, just as a high level, this is going to cover everything from credit scores—what is it? How it’s able to give people who might give someone credit a sense of how likely you are to pay back that cred…

Inside a Dog Rehab Center | National Geographic

We’re going behind the door, so it’ll be a tight squeeze. S.K. and Robin arrived in early 2015. They came to us from Humane Society International, who rescued them in South Korea. They had, you know, told us that these dogs really exhibited behavior that…

The 5 BEST Credit Cards For Beginners in 2020

What’s up guys, it’s Graham here! So, a little over a year ago, I made a video going over the best beginner credit cards to get in 2019. But now, I realized there’s a bit of a problem, and that is that it’s not 2019 anymore. It’s the future—it’s now 2020.…

Make Bold Guesses and Weed Out the Failures

Going even further, it’s not just science. When we look at innovation and technology and building, for example, everything that Thomas Edison did and Nikola Tesla did, these were from trial and error, which is creative guesses and trying things out. If y…

Frogs Come Alive After Winter Thaw | National Geographic

More Articles