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What happens when you freeze the Earth?You get the first animals.

earth historical science, environment for algae, ice age, nature
Image created from Pixabay.

Science looks at the building blocks to life on Earth.

Life on Earth is tough as nails.

From the crushing, soulless depths of the ocean to the highest reaches of the atmosphere, from boiling hot springs to Antarctic wastes — even in the radioactive heart of Chernobyl, life thrives. It finds a way. It laughs in the face of adversity.


Turns out, that amazing tenacity is kind of our birthright as Earthlings. To understand why, you've got to go back to Snowball Earth.

720 million years ago, the Earth was a pretty different place. For one thing, it was in the icy grips of something called the Cryogenian period.

ice age, environment, algae, earth freezing, science, global warming

Saturn's moon Enceladus. 720 million years ago, Earth's surface might have looked strikingly similar.

Photo from NASA/JPL-Caltech/Space Science Institute.

Living on Earth would have been tough. For 85 million years, the planet was locked in a grinding cycle of massive freezing and thawing. This was no mere chill. At its height, the entire planet may have been frozen over with glaciers marching over even the equator. The alternative? Greenhouse conditions caused by massive volcanic eruptions.

Sounds like a bad time to be around. And, yet, life didn't just endure. This period happens to coincide with one of life's greatest moments — the jump from single-celled bacteria and microbes to multicellular life. Plants, animals, mushrooms, just about everything you can see in your day-to-day life is a descendant of this great leap forward.

But this triumph in the face of adversity wasn't a coincidence. At least, that's what a letter published Aug. 16, 2017 in the science journal Nature says.

Life didn't just endure this cycle of ice and fire. It may have flourished because of it.

The reason, the authors say, has to do with algae. For the three billion years before, single-celled life had scrimped by on whatever energy and nutrients it could grab. There wasn't much to go around.

But things were going to change. As the glaciers marched back and forth across the surface of the planet, they acted like giant belt sanders, grinding mountain into powder — powder that was chock-full of minerals like phosphates. When the cycle flipped and the volcanoes took over, the glaciers melted and dumped all those nutrients straight into the ocean.

Where the algae could get it.

Which then spread like never before.

Which was then food for everything else. Suddenly there was plenty to go around and life began to eat. And thrive. And change. And, over time, that life made the leap from tiny, lonely microbes to the ancestors of all the multicellular life we see today.

We don't just endure hard times. They give us the fuel we need to grow.

This is just one possible explanation, but the scientists say it's backed up by evidence. Chemical signatures in the rocks show a massive algal bloom around this time. Other ideas might come in later and disprove it, of course — that's just how science goes.

But if this is true, then it just makes life on Earth that much more incredible.

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Relationship expert tells people to never get married unless you're willing to do 3 things

"If you and your partner (both) are unable or unwilling to do these 3 things consistently forever, you won’t make it."

Relationship expert gives people advice on getting married.

Being in a relationship can be difficult at times. Learning someone else's quirks, boundaries, and deep views on the world can be eye-opening and hard. But usually, the happy chemicals released in our brain when we love someone can cause us to overlook things in order to keep the peace.

Jayson Gaddis, a relationship expert, took to Twitter to rip off people's rose-colored glasses and tell them to forego marriage. Honestly, with the divorce rate in this country being as high as it is, he probably could've stopped his tweet right there. Don't get married, the end. Many people would've probably related and not questioned the bold statement, but thankfully he followed up with three things you must be willing to do before going to the chapel.

Before going into his reasons for why he tells people not to get married, Gaddis explained that he is a person that "LOVEs being married." I mean, it would probably make him a pretty weird relationship expert if he hated relationships, so it's probably a good thing he enjoys being married. Surely his spouse appreciates his stance as well.

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The Tater Tot is the brainchild of two Mormon brothers, F. Nephi and Golden Grigg, who started a factory on the Oregon-Idaho border that they appropriately named Ore-Ida. The brothers started the factory in 1951 after being convinced that frozen foods were the next big thing.

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Pop Culture

10 years ago, a 'Stairway to Heaven' performance brought Led Zeppelin's surviving members to tears

Heart, John Bonham's son and a full choir came together for the epic tribute.

Led Zeppelin got to see their iconic hit performed for them.

When Billboard and Rolling Stone pull together their "Best Songs of All Time" lists, there are some tunes you know for sure will be included. Led Zeppelin's "Stairway to Heaven" is most definitely one of them.

It has everything—the beauty of a ballad, the grunginess of a rock song, the simple solo voice, and the band in full force. "Stairway to Heaven" takes us on a musical journey, and even people who aren't necessarily giant Led Zeppelin or classic rock fans can't help but nod or sing along to it.

Of course, it's also been so ubiquitous (or overplayed, as some would claim) to become a meme among musicians. Signs saying "No Stairway to Heaven" in guitar stores point to how sick of the song many guitarists get, and when Oregon radio station KBOO told listeners they would never play the song again if someone pledged $10,000, Led Zepelin singer Robert Plant himself called in and gave the donation.

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Developmental scientist shared her 'anti-parenting advice' and parents are relieved

In a viral Twitter thread, Dorsa Amir addresses the "extreme pressure put on parents in the West."

Photo by kabita Darlami on Unsplash, @DorsaAmir/Twitter

Parents, maybe give yourselves a break

For every grain of sand on all the world’s beaches, for every star in the known universe…there is a piece well intentioned, but possibly stress-inducing parenting advice.

Whether it’s the astounding amount of hidden dangers that parents might be unwittingly exposing their child to, or the myriad ways they might be missing on maximizing every moment of interaction, the internet is teeming with so much information that it can be impossible for parents to feel like they’re doing enough to protect and nurture their kids.

However, developmental scientist and mom Dorsa Amir has a bit of “anti-parenting advice” that help parents worry a little less about how they’re measuring up.

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A guy with road rage screaming out of his car.

A psychologist who’s an expert in narcissism has released a telling video that reveals one of the red flags of the disorder, being an erratic driver.

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Dr. Ramani Durvasula is a licensed clinical psychologist in Los Angeles, Professor Emerita of Psychology at California State University and author of several books, including “Should I Stay or Should I Go: Surviving A Relationship with a Narcissist.”

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It's a scenario that no one wants to see play out, but for Adolfo Molina, the scenario became reality and he didn't hesitate to spring into action. Molina was driving down the highway when he spotted a woman in a blue car who lost consciousness as her car careened down the shoulder of the highway. The concerned driver quickly pulled over in order to attempt to rescue the woman.

But there was a problem, he had to cross four lanes of traffic on the highway just to make it to the woman's still moving car. That obstacle didn't stop him. Molina sprinted across the highway, crossing right in front of a black pick up truck before running at full speed to attempt to open the woman's door and stop her car.

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