The Sahara Desert might look like an endless sea of sand, but it's hiding some of the most mind-blowing secrets under its surface! đ” Scientists have uncovered the bones of ancient whalesâyes, whalesâproving this desert was once an ocean millions of years ago. There are also mysterious stone carvings and tools from prehistoric humans who thrived here when it was a lush, green paradise. Oh, and letâs not forget the eye-popping âEye of the Sahara,â a massive, circular structure visible from space. Some even believe it could be the remnants of the lost city of Atlantis! The Sahara is like natureâs treasure chest, packed with finds that bend reality and rewrite history. đïžâš Credit:
Remnants of an Ancient Lake: By Joshua Stevens/ NASA Earth Observatory, https://earthobservatory.nasa.gov/images/146304/remnants-of-an-ancient-lake
megalake: By NASAâs Shuttle Radar Topography Mission, https://www.si.edu/stories/ancient-megalake-discovered-beneath-sahara-desert
CC BY 2.0 https://creativecommons.org/licenses/by/2.0:
Bandringa rayi fossil shark: By James St. John - https://flic.kr/p/pnXaHf, https://commons.wikimedia.org/w/index.php?curid=36594184
Spinosaurus skeleton: By Kabacchi - https://flic.kr/p/7dqLn2, https://commons.wikimedia.org/w/index.php?curid=8385023
Spinosaurus swimming: By Mike Bowler, https://commons.wikimedia.org/w/index.php?curid=38571896
Erg Chech 002: By Steve Jurvetson - https://flic.kr/p/2kuWqYs, https://commons.wikimedia.org/w/index.php?curid=105132919
Pink halite: By James St. John - https://flic.kr/p/2iigYK9, https://commons.wikimedia.org/w/index.php?curid=95007989
Pink snow: By James St. John - https://flic.kr/p/Cdc7BU, https://commons.wikimedia.org/w/index.php?curid=129024028
CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/:
Cothurnocystis: By Haplochromis, https://commons.wikimedia.org/w/index.php?curid=10946202
Cothurnocystis elizae CRF: By Dwergenpaartje, https://commons.wikimedia.org/w/index.php?curid=23379107
HunsrĂŒck-Schiefer Fossil Homalozoa: By HunsrĂŒck-Museum Simmern, https://commons.wikimedia.org/w/index.php?curid=23481044
Tooth of Spinosaurus: By Utahraptor, https://commons.wikimedia.org/w/index.php?curid=15819318
Wadi Al-Hitan: By Hatem Moushir, https://commons.wikimedia.org/w/index.php?curid=32784367
CC BY-SA 4.0 By Utahraptor - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=15819318:
Metriorhynchus stomach contents: By Skye McDavid, https://commons.wikimedia.org/w/index.php?curid=108060164
Macrospondylus bollensis: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=12699912
Castericystis sprinklei: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=76425026
Spinosaurus Crane: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=11868466
Machimosaurus: By DiBgd, https://commons.wikimedia.org/w/index.php?curid=42204283
Machimosaurus buffetauti: By Young, Mark T.; Hua, StĂ©phane; Steel, Lorna; Foffa, Davide; Brusatte, Stephen L.; ThĂŒring, Silvan; Mateus, OctĂĄvio; Ruiz-Omeñaca, JosĂ© Ignacio; Havlik, Philipe; Lepage, Yves; & de Andrade, Marco Brandalise, https://commons.wikimedia.org/w/index.php?curid=45809541
Cretaceous 90 ma map: By Merikanto, https://commons.wikimedia.org/w/index.php?curid=118829487
CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0:
Whale fossils: By Tom Horton, https://commons.wikimedia.org/w/index.php?curid=6822293
CC BY-SA 3.0 IGO https://creativecommons.org/licenses/by-sa/3.0/igo/:
Whale Valley: By Guy Debonnet, https://commons.wikimedia.org/w/index.php?curid=58158101
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Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV
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For more videos and articles visit:
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This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
Remnants of an Ancient Lake: By Joshua Stevens/ NASA Earth Observatory, https://earthobservatory.nasa.gov/images/146304/remnants-of-an-ancient-lake
megalake: By NASAâs Shuttle Radar Topography Mission, https://www.si.edu/stories/ancient-megalake-discovered-beneath-sahara-desert
CC BY 2.0 https://creativecommons.org/licenses/by/2.0:
Bandringa rayi fossil shark: By James St. John - https://flic.kr/p/pnXaHf, https://commons.wikimedia.org/w/index.php?curid=36594184
Spinosaurus skeleton: By Kabacchi - https://flic.kr/p/7dqLn2, https://commons.wikimedia.org/w/index.php?curid=8385023
Spinosaurus swimming: By Mike Bowler, https://commons.wikimedia.org/w/index.php?curid=38571896
Erg Chech 002: By Steve Jurvetson - https://flic.kr/p/2kuWqYs, https://commons.wikimedia.org/w/index.php?curid=105132919
Pink halite: By James St. John - https://flic.kr/p/2iigYK9, https://commons.wikimedia.org/w/index.php?curid=95007989
Pink snow: By James St. John - https://flic.kr/p/Cdc7BU, https://commons.wikimedia.org/w/index.php?curid=129024028
CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/:
Cothurnocystis: By Haplochromis, https://commons.wikimedia.org/w/index.php?curid=10946202
Cothurnocystis elizae CRF: By Dwergenpaartje, https://commons.wikimedia.org/w/index.php?curid=23379107
HunsrĂŒck-Schiefer Fossil Homalozoa: By HunsrĂŒck-Museum Simmern, https://commons.wikimedia.org/w/index.php?curid=23481044
Tooth of Spinosaurus: By Utahraptor, https://commons.wikimedia.org/w/index.php?curid=15819318
Wadi Al-Hitan: By Hatem Moushir, https://commons.wikimedia.org/w/index.php?curid=32784367
CC BY-SA 4.0 By Utahraptor - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=15819318:
Metriorhynchus stomach contents: By Skye McDavid, https://commons.wikimedia.org/w/index.php?curid=108060164
Macrospondylus bollensis: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=12699912
Castericystis sprinklei: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=76425026
Spinosaurus Crane: By Didier Descouens, https://commons.wikimedia.org/w/index.php?curid=11868466
Machimosaurus: By DiBgd, https://commons.wikimedia.org/w/index.php?curid=42204283
Machimosaurus buffetauti: By Young, Mark T.; Hua, StĂ©phane; Steel, Lorna; Foffa, Davide; Brusatte, Stephen L.; ThĂŒring, Silvan; Mateus, OctĂĄvio; Ruiz-Omeñaca, JosĂ© Ignacio; Havlik, Philipe; Lepage, Yves; & de Andrade, Marco Brandalise, https://commons.wikimedia.org/w/index.php?curid=45809541
Cretaceous 90 ma map: By Merikanto, https://commons.wikimedia.org/w/index.php?curid=118829487
CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0:
Whale fossils: By Tom Horton, https://commons.wikimedia.org/w/index.php?curid=6822293
CC BY-SA 3.0 IGO https://creativecommons.org/licenses/by-sa/3.0/igo/:
Whale Valley: By Guy Debonnet, https://commons.wikimedia.org/w/index.php?curid=58158101
----------------------------------------------------------------------------------------
Music from TheSoul Sound: https://thesoul-sound.com/
Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV
Subscribe to Bright Side: https://goo.gl/rQTJZz
----------------------------------------------------------------------------------------
Stock materials (photos, footages and other):
https://www.depositphotos.com
https://www.shutterstock.com
https://www.eastnews.ru
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For more videos and articles visit:
http://www.brightside.me
----------------------------------------------------------------------------------------
This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.
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FunTranscript
00:00Well, there you are. The sun is scorching, you're thirsty. All you can think about
00:05is water and ancient bones under your feet. You're wandering through the Sahara, the
00:11largest hot desert on Earth. Right now, you're crossing a stretch of sand called Whale Valley.
00:18And all over these 75 square miles of land, fossils cover the ground so thickly that you
00:23can't help but step on them. Paleontologist Hesham Salam says it's an unusual picture
00:29in this place. The bones are poking right out of the cliffs, as if they're calling
00:34to you to come check them out. You can spot ribs scattered all over the place.
00:40Look at these vertebrae. They're giant. Ooh, the creature they once belonged to must
00:44have been up to 65 feet long. The fossils show that the animal had a streamlined body
00:50like today's whale, but still had features like hind legs and feet. For scientists, it
00:55means a very exciting thing. They might've discovered a fully intact skeleton of a prehistoric
01:01whale. It was an animal that lived in this area when Egypt was underwater.
01:06You see, today, the Valley of the Whales is the world's largest ancient whale graveyard.
01:12You're likely wondering what marine animals are doing in a desert more than 100 miles
01:16away from the nearest coast. Well, millions of years ago, this desert was at the bottom
01:22of a massive ocean called the Tethys, which stretched from Europe to India. When sea
01:27levels dropped, the ocean left behind a seabed covered with fossils. And today, the fossils
01:33of some of the earliest known whales rest here, which gives researchers a peek into
01:37how today's massive ocean whales may have evolved.
01:42The fossils here are super detailed, even with some stomach contents still intact. Uh-oh.
01:48Scientists have also found fossils of ancient sharks, crocodiles, and turtles, helping to
01:53recreate what this marine world looked like millions of years ago.
01:58The first whale bones were discovered in 1902, but it wasn't until the 1980s that people
02:04really started to explore the area, only when access to this area became better. Sadly,
02:10some fossils had been taken away by collectors before the site turned into a protected area.
02:15Most of the fossils are just under the surface, slowly revealed by erosion.
02:21Whale Valley gives us an amazing glimpse into millions of years of ancient coastal marine
02:25life. But let's move further â ancient whale
02:29fossils aren't the only discovery you're going to make today.
02:33For over 150 years, scientists have been puzzled by a strange creature that lived millions
02:38of years ago. But now, thanks to some amazing fossils found in Morocco, they've finally
02:44figured it out. Look at them. These creatures are called
02:47blablabla â nah, I'm kidding â Stylophorans. They look like flattened armor with a long
02:53arm sticking out. Researchers discovered these creatures in 2014 and were shocked.
02:59The fossils dated back around 478 million years. They found around 450 specimens, and
03:06to their surprise, some even had soft tissues preserved, which is super rare. Before this,
03:12they only knew Stylophorans from their hard parts. Originally, scientists thought these
03:17creatures were good old echinoderms â animals like sea urchins and starfish.
03:23But new discoveries proved that they had a core body and feeding arm, similar to modern
03:28starfish, complete with a water vascular system to help them move and eat.
03:33This finding ends a long debate about where Stylophorans fit in the animal family tree.
03:38Now we know they're related to echinoderms, but are more advanced because they don't
03:43have the typical 5-ray symmetry. Ooh, come here and look at this giant fossil.
03:49It was found in the Sahara and gave scientists new insights into the Spinosaurus, the largest
03:55carnivorous dinosaur we know about. These 95-million-year-old remains also confirm that
04:01it was the first known swimming dinosaur. The Spinosaurus had flat, paddle-like feet
04:07and nostrils on the top of its crocodile-like head, perfect for staying underwater. It was
04:13a pretty weird dinosaur with a long neck, trunk, tail, and a 7-foot sail on its back,
04:19so it must've spent a lot of time in the water.
04:23At over 50 feet long, Spinosaurus might've been even larger than T. rex. The first Spinosaurus
04:30remains were discovered about 100 years ago in Egypt. But only this new fossil, found
04:35in Morocco, helped scientists reconstruct this dinosaur for the first time.
04:42Researchers paid attention to the creature's shorter hind limbs and wide claws. These features
04:47point to adaptations for life in the water. Its snout and dense bones also suggest it
04:53was a swimmer, while its spiked tail likely attracted mates. Hey, good-lookin', come
04:59here often?
05:00And here's another astonishing find made in Tunisia â the remains of Machimosaurus
05:05rex. So far, it's believed to be the biggest crocodile ever. This ancient croc was about
05:1132 feet long and weighed around 66,000 pounds. It was a top predator around 130 million years
05:19ago, and its skull was over 5 feet long. This discovery is a big deal, because it shows
05:26that these crocs stuck around longer than we thought.
05:30Before this, scientists believed that they disappeared during a minor extinction event
05:34between the Jurassic and Cretaceous periods.
05:38Now let's go back to the fact that the Sahara was once underwater, and some of the largest
05:43sea creatures ever lived there. A study published in the Bulletin of the American Museum of
05:48Natural History speaks about an ancient body of water called the Trans-Saharan Seaway.
05:54It existed between 100 and 50 million years ago, covering parts of Western Africa. Scientists
06:00spent two decades trying to recreate this prehistoric underwater world. They found
06:05it was warm and shallow, home to some pretty terrifying creatures, including 5-foot-long
06:11catfish and 40-foot-long sea snakes. Yikes!
06:15The seaway was cut off from larger oceans for long stretches, which may have helped
06:20these predators grow larger because resources were always available. It's a classic case
06:25of evolution at work, leading to what scientists call gigantism in isolated environments.
06:33But all that water didn't just disappear with no trace. Under the sands of the Sahara,
06:39scientists have discovered a massive ancient lake, which they're calling a mega-lake.
06:44Make sense?
06:45This lake formed around 250,000 years ago, when the Nile River flooded the eastern Sahara.
06:51At its biggest, this lake covered over 42,000 square miles. It's about half as big as
06:57Kansas.
06:58They also found evidence of a smaller lake, 93 miles west of the Nile, at a slightly lower
07:04level and covering 18,600 square miles. All of this adds to growing evidence that once,
07:11North Africa had many lakes that might have created migration routes, helping early humans
07:16move across the continent.
07:19Now in the Sahara, you can find not only fossils of bizarre animals. In May 2020, some weird
07:26rocks with greenish crystals were discovered in a sandy region in southern Algeria's Sahara
07:32Desert. When scientists checked them out, they found out these rocks weren't from
07:36Earth. They were actually pieces of a meteorite called Erg Chek 002.
07:43This meteorite is super old, like the oldest volcanic rock ever found. It melted ages ago
07:50in the fiery heart of an ancient protoplanet that no longer exists. Researchers had recently
07:56published a study in Nature Communications, revealing that they have analyzed lead and
08:01uranium isotopes in Erg Chek 002 and found out it's more than 4.5 billion years old.
08:09Another cool discovery made in the Sahara is quite unexpected. A few years ago, scientists
08:14found what they think are the world's oldest colors and their bright pink. These pigments
08:20were uncovered from rocks that are around 1.1 billion years old in the Sahara Desert.
08:25The colors came from microscopic organisms, as animals didn't exist back then. The discovery
08:31was made by a PhD student who crushed the ancient rocks and analyzed the pigments. These
08:38pink pigments are actually ancient chlorophyll from photosynthetic organisms that lived in
08:43an ocean that's long gone. Researchers are now sure that this finding could help explain
08:49why larger, complex creatures showed up much later in Earth's history.
08:55Before these colors were discovered, scientists didn't know what was missing in the food
08:59chain that delayed the evolution of larger animals. Now, they understand that tiny cyanobacteria
09:06were at the bottom of that chain. Apparently, this discovery is not just about finding some
09:11old pink stuff. Scientists believe it's a breakthrough in understanding the history
09:16of life on Earth.
09:20That's it for today! So, hey, if you pacified your curiosity, then give the video a like
09:25and share it with your friends. Or, if you want more, just click on these videos and
09:28stay on the Bright Side!