What If Earth’s Age Was Just 1 Day


Okay — Wakey wakey, Bright Sider! We have a long day ahead of us. My name’s Flash, and I’m about to take
you on a quick 24-hour trip through the history of our planet. That’s right – 4.5 billion years in just
1 day! Here we go… At around 12:00am, the young Earth collides
with another planet called Theia. Will you look at that – the moon is born! You might be wondering why this compass is
going berzerk. Well, in real time, the magnetic poles switch
places every 250,000 years. (Yep, North becomes South, and South is the
new North – magnetically, at least!) But right now, on this 1-day-old planet, they’re
changing 12 times a second! Also, the continents move about 1 inch per
year to form a supercontinent. That happens every 400 million years. But today, they’re merging and breaking
up every 2 hours! From 12 to 4:30am, not much interesting happens
– just the planet and atmosphere morphing…and the sound of our yawns! At 5:30am, we see the first single-celled
organisms starting their life in the ocean. The planet is filled with methane, and these
little guys are feasting on it. It’s 8am. Instead of rush hour traffic filling the streets,
we have the first viruses emerging… and no coffee yet. Not even a single coffee tree around… By 11am, photosynthesizing bacteria have managed
to take in enough sun for the past 6 “hours” (aka, a billion years) to fill the atmosphere
with the byproduct they let out: oxygen! Get ready – this is gonna kick-start the
development of life on this planet! At 11:35, it starts to get chilly. A mere second later, it’s freezing cold,
and we have the first snowball on Earth. Even the oceans turn to ice. Don’t worry, everything will melt by lunchtime. At around 1pm, we have special cells with
internal organs coming to life, but they’re taking their sweet time. 3 hours later, they’ll start to divide into
3 groups that will eventually become fungi (that’s mushrooms and stuff), the lovely
plants that’ll color this Earth, and, of course, animals! But not for a while… Let’s fast-forward while these cells are
taking forever to go from simple to complex and all that evolutionary jazz… At 7:20pm, we FINALLY have something familiar:
sponges! Took long enough… It’s 7:45, and we have another creature
being born. It’s called a placozoa. You’ll need a microscope to see it because
it’s only 1 millimeter long. But keep an eye on him because he’s the
last common ancestor of all animals combined. It’s 7:55, and the Earth freezes over again. Time for a 2-minute ski sesh before everything
melts. 8pm, and look in the ocean, we have the first
comb jellies appearing! Those beautiful transparent creatures with
rainbow reflections on them. They’re supposedly the first animals to
appear. Finally, things are starting to move! At around 8:30, we can remove our sun-protecting
gear because now the Ozone layer appears. A little late, buddy – it’s already past
sunset. In just 2 minutes, the ocean is filling with
plants! By 8:45, life is flourishing in the sea. We now have jellyfish swimming around corals. We don’t have full-on starfish yet (to my
disappointment…I’ve been waiting!). But, hey, they’re on their way! At 8:52, we can see trails on the ocean floor. That means little creatures have begun to
crawl. 4 minutes later, animals are beginning to
develop little backbones. Not the regular kind you and I have, though,
the ancient incomplete ones. We don’t see the first official backbone
until another 4 minutes. Seems pretty quick, but it took 15 million
years! It’s 9:10pm, the moon is up, the sea creatures
are getting a little stir-crazy, so they decide to explore the land. 30 seconds later, we finally get some diversity! Different animals and plants emerge. Look, they’re spreading everywhere faster
than the speed of sound! 9:41, and do you know what’s been missing? Dinosaurs! No, not yet, but they’re coming, just hang
tight! For now, it’s the first insects. Land plants and trees also shoot up from the
ground! By 9:45, we have the first 4-legged animals
appearing in shallow waters. At 10:10pm, those 4-legged creatures (known
as tetrapods) are splitting into sauropsids and synapsids. The sauropsids are the ones we’ve been waiting
for – they’ll soon become reptiles, birds, and…dinosaurs! The synapsids are important too, though! They’re also like reptiles but later evolve
into mammals. (Like, you and me!) In just 2 minutes, those mammals are taking
over the land. The most famous one is called the Dimetrodon. It’s a massive reptile with a sail on its
back. It’s 10:25, and another species called therapsids
appear while our friend “what’s his sail” slowly fades away. By 10:30, everything vanishes, we can hardly
see any animals. A mass extinction takes place. Only 5% of the species survive. I’m not sure what caused it. Either a huge asteroid or an enormous volcanic
eruption. 10:34, and the moment is here. The dinosaurs are finally making an appearance. The first one was the Nyasasaurus, but we’re
not sure if he was the real deal or a relative turning into a dino. Just 2 minutes have passed, and – HEY! Look at the ground! We have bird-like footprints. Are the dinosaurs turning into birds? 10:45 marks another mass extinction. Boy, it’s the second one in an hour. But thankfully, our dinosaur friends make
it. So, they take the opportunity to spread all
around the world. Uh-oh, we gotta find some place to hide, and
fast! In 5 minutes, the tyrannosaurus will appear,
and it’ll start eating everything in its path! By 11:00pm, we have the first birds appearing
in Europe. Woah, look at that thing! It has the face of a dinosaur and round wings. He seems to be around 1 foot long and get
this – much later (after we humans show up!), scientists will find out that this guy
is connecting birds and dinosaurs! It’s 11:03, and we have the first kangaroo
ancestors. These are the first animals that carry their
babies in a pouch. They mostly appeared in Southeast Asia, but
since the continents are traveling at supersonic speeds, they get to North America and Australia
in less than half an hour. A minute later, plants are starting to flower
for the first time ever. It’s 11:15, and mammals are splitting into
4 new groups. One will become hoofed mammals, whales, and
bats. (Yes, whales and giraffes share an ancestor!) Another will become monkeys, apes, and their
relatives. Then, we have elephants, manatees, and the
like. And the 4th group will become anteaters and
armadillos. It’s about time they showed up! The ants have been around for 5 minutes, and
they’re crawling all over us! By 11:17, dinosaurs are reaching their full
size. It’s like Jurassic Park around here! Look at the Argentinosaurus. This guy was the largest animal that ever
existed. He could get over 100 feet long – that’s
almost as much as 3 school buses lined up! And he was tall enough to peek into a 7th-floor
window! If only they had 7th floor windows back then. It’s 11:26. Can you hear that? LOOK UP! A giant asteroid coming right our way! It smashes into the Earth, and dust flies
everywhere. A few seconds later, everything clears up,
but the dinosaurs have disappeared. Only a few mammals are around. With the dinosaurs gone, these hairy milk-lovers
take over… At 11:30, the primates separate into 2 groups,
and one of those will become apes, gorillas, and, sometime later, humans! 11:45 – those hooved animals I mentioned
earlier – they split off into 2 groups. One has an even number of toes: goats, camels,
pigs, deer. And the other has an odd number, like rhinos
and tapirs. (There’s a face only a mother could love!) It’s 11:58pm, and still no signs of people. But the chimpanzees and bonobos appear suddenly! 15 seconds later, the hominin species begin
to walk on 2 legs, just like we did when we were babies. It’s 11:59 and 23 seconds, and we FINALLY
have full-blown humans over in Africa! A second later, they start migrating all over
the world. They don’t have a language, and they can’t
use or create tools. That happens at 11:59 and 58 seconds – 2
seconds before the day ends, and 100,000 years ago! So, out of an entire 24-hour day, our species
only showed up right at the last minute. Hey, I like the think we were fashionably
late. Plus, didn’t take us long to become top
of the food chain, now, did it? Wait, is that a bear over there? Nevermind, gotta gooooo!!! If you learned something new today, then give
the video a like and share it with a friend! And here are some other cool videos I think
you’ll enjoy. Just click to the left or right and stay on
the Bright Side of life!

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