OGTREYROB

Oxygen already killed most of the life on Earth once. The first time it filled the air, around 2.4 billion years ago, it was so poisonous that nearly everything alive died. Scientists call it the Oxygen Catastrophe. Back then the oceans were full of tiny microbes, and none of them used oxygen. Then one kind, an ancestor of the green scum you still see on ponds, started giving off oxygen as a waste gas, the same way you breathe out air you don’t need. Oxygen is a wrecker. It rips apart the delicate machinery inside a living cell, including the DNA, and as it built up in the water and then the sky, it triggered the first mass extinction this planet had ever seen. A few survivors hid in the mud and deep underground where the gas couldn’t reach, and some of their descendants are still down there. But one tiny cell did something nobody else did. It ate a bacterium that had learned to use oxygen rather than die from it, and instead of digesting its meal, it kept it alive inside itself. That trapped bacterium became the mitochondria, the little engines that power your cells right now. Almost every cell you are made of carries hundreds or thousands of them, all descended from that one strange truce with a poison. The trade was worth it because burning food with oxygen releases about 18 times more energy than burning it without. It is the reason anything can swim fast or think hard. Every big, fast-moving animal on Earth, you included, runs on the gas that almost ended life. Oxygen changed the sky too. Some of it floated up high and turned into ozone, a thin layer that blocks most of the sun’s harshest rays. Before that shield existed, raw sunlight was strong enough to fry the DNA of anything out in the open, so life had to stay underwater, where a few feet of sea soaked up the danger. For almost two billion years, nothing lived on land at all. Only once the ozone grew thick enough, a few hundred million years ago, did the first plants and animals crawl out of the water. And the old poison never really left. Every second, the oxygen your cells burn throws off tiny broken bits called free radicals, and they keep nicking your DNA and the proteins around it. The damage adds up, slowly, your whole life. Back in 1956 a scientist named Denham Harman suggested this slow rusting from the inside is a big reason we get old. People still argue about how much it matters, and no antioxidant pill has ever been shown to make anyone live longer, but the basic idea has held up. The gas keeping you alive right now is also quietly wearing you down, year by year. The joke just got the timing wrong. Oxygen really does kill slowly, and billions of years before we showed up, it already proved it can kill fast.

so RIDICULOUSLY walkable that spongebob did all this shit without a single boat in sight

malcolm in the middle

good content, algorithm please give me more of it thank you

Na hell no, WTF is this. 🤣🤣😭😭😭

When this dude dies they’re going to tell us that he was actually a very good person and we should feel very sad that a human life was lost

No fkn way.

Plot twist: What if future humans are doing their job trying to protect us from a world-ending event tied to these scientists, something they “accidentally” create later that becomes uncontrollable? So removing them now would actually be a completely valid way to stop it.

@khaliltooshort We’d still be in season 3 lol

Just imagine how much better this show would be if they kept these animators

This part of the episode was wild because Mark, Oliver, and his dad were nearly killed trying to protect Earth. But somehow, Eve is the victim, and Mark is apologizing for it. It showed that she had no faith that Mark would make it home alive. She looked him dead in the eye before he left, telling him not to worry, and aborted his child during the months he was away. Her excuse was that she would have felt alone if she had had the child and Mark didn't make it back. ALONE? REALLY? You have people saying, "Eve has shitty parents, and the living conditions wouldn't be great." So, you all forgot Mark's mother, Debbie, exists? Don't give me that "Debbie already has too much on her plate." Are you fucking serious? This is Debbie, the woman who practically married Superman and has a son who is Invincible. Debbie is the strongest woman in this show, and one hell of a mother. Omni Man ends up creating a child (Oliver) from another female species, and Debbie decides to raise another woman's child that isn't hers, and you are trying to tell me Debbie wouldn't be able to handle being a Grandmother? That is her blood, and she would make a way out of nowhere if shit got bad for Eve. If Mark did die, that would be more than enough reason to keep the child. That child is his living legacy for protecting the fucking Universe. It's crazy how Mark is such a simp and taking blame for Eve aborting his fucking child.

Were not that hungry for a new season man #pushitback

@oscar420_ 🔥

Anyone ever tried this brand?

Drakeo used to close his eyes and see the lyrics like the Star Wars intro’s