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]

Marques Brownlee on Building an Audience and Other Advice for Creators

Finding derivative with fundamental theorem of calculus | AP®︎ Calculus AB | Khan Academy

View All

AI for improved math scores

Hi everyone! Nice to meet you. My name is Danielle Sullivan, and I’m so excited to be the facilitator of this excellent math conversation today with my amazing colleagues. Today, we want to talk about math instruction, how it’s changed and shifted since t…

Worked example: Using oxidation numbers to identify oxidation and reduction | Khan Academy

What we have here is a reaction that involves iodine, manganese, oxygen, and hydrogen. What we want to do in this video is think about which of the elements are being oxidized in this reaction and which of the elements are being reduced in this reaction. …

From Broke To Bugatti | Inside The Millionaire Empire Of Doug DeMuro

This is the like button, and you should hit it. So when you think of a self-started multi-million dollar business that’s accumulated one and a half billion views and outpaces the ranks of even the top-rated television hits, your mind doesn’t think of this…

What Genetic Thread Do These Six Strangers Have in Common? | National Geographic

People have always asked me, kind of like where I’m from, what my race is, and I was not totally sure. [Music] I identify as mixed: white, black, and Native American African-American. But my mom would say, “You’re black, but you’re also white.” I didn’t u…

Science, technology, and the environment | High school biology | Khan Academy

So I really liked a snack, and one of my most favorite snacks of all time happens to be bananas. I mean, you can have them in a smoothie, with some peanut butter, on some toast—in any way, really. Usually, like most people, I just throw away the peels aft…

Verifying inverse functions by composition: not inverse | High School Math | Khan Academy

[Voiceover] Let’s say that f of x is equal to two x minus three, and g of x, g of x is equal to 1⁄2 x plus three. What I wanna do in this video is evaluate what f of g of x is, and then I wanna evaluate what g of f of x is. So first, I wanna evaluate f of…

Frogs Come Alive After Winter Thaw | National Geographic

More Articles