If our planet is 70% covered in water, hence the nickname “blue planet”, we still have countless things to discover under the water’s surface. Some also believe that we know more about the Moon or Mars than we know the depths of our own seas. Together with oceanographers, biologists, and seabed experts, Fox has researched some of the greatest mysteries in our oceans.
Where is the plastic pollution of our oceans hiding?
Let’s start on the surface. Our oceans are home to tons of plastic waste that we want to talk about “seventh continent” When referring to this phenomenon. However, if such glaring pollution is a challenge, what is invisible is of more concern.
“99% of all plastic is gold”explains oceanographer Eric Van Sypel for Vox. “We have black plastic. Just as astronomers have dark matter, we oceanographers have no idea where most of the plastic is in our ocean. We have lost it.”
This is far from good news. Did this plastic disappear because it was ingested by marine organisms? What other dangers do they pose to marine ecosystems? Sad questions that remain somewhat vague at the moment.
Why do whales float on beaches?
Whales stuck on beaches often cause ink to flow because this phenomenon is impressive. If, strictly speaking, such cases were not rare, then scientists have nonetheless noted that the number of whales stranded on the seashore has increased over the past 50 years.
Given the pollution of the oceans by humans, this first question leads us to another: Are we responsible for this increase in the number of cases? The answer to this question is very complex.Vox Comments. “Although we know that humans influence the ocean environment, it can be difficult to analyze how these effects affect individual species.”
Can a human be a true friend to an octopus?
In September 2020, Netflix aired for the first time The wisdom of the octopus, a documentary about a man’s friendship with one of these eight armed creatures. If this movie has moved more than one movie, a question remains: is this friendship really possible? We know that humans can develop strong relationships with their pets, but what about octopuses?
Obviously, it was impossible to scan one of the nine miniature monsters’ brains to get its opinion. However, for writer and journalist Ferris Gabr, the question remains a fascinating one. “It’s like a journey between the stars.”he admits to Vox. “It looks like we can get as close as possible to this kind of extraterrestrial contact moment.”
How many fish live in the twilight zone?
Also known as the “Twilight Zone”, this place is located between 200 meters and 1,000 meters below the surface of the oceans. Because of its depth, it is still largely unknown to scientists. “The sunlight fades away almost completely and so does our knowledge of these depths,” Vox Comments.
Why is our ignorance of it annoying? According to US media, it is possible that this twilight zone is home to more fish than all other ocean regions combined; but primarily, “These organisms in the dark part of the ocean play an important role in regulating the climate”.
Why do so many marine creatures glow in the dark?
This is what is most commonly called bioluminescence, i.e. Production and emission of light by a living organismExplains the prospects. Most seafloor creatures glow in one way or another, as sunlight never penetrates.
If we know today how this wonderful chemical phenomenon works, its usefulness is still the subject of many debates. Do you contact? to attract prey? These are just theories at the moment.
Why was a bad map of the oceans made?
Only 20% of the ocean floor has been mapped. It’s little, and it’s even less than Mars or the Moon. As Vox explains, “More people took part in the Apollo missions to the moon than people who visited the Challenger Deep, the deepest part of the deepest trench in the ocean.”.
If technologies have really evolved over time, particularly through sonar information that can show valleys and mountains hidden on the ocean floor, exploration to this day remains a huge challenge for scientists.
Is it possible to reach the Earth’s mantle through the sea floor?
If scientists are interested in the sea floor, then they are also fascinated by what is under the Earth’s mantle, this place under the Earth’s crust. Vox says that sixty years ago, a group of geologists ventured to the sea floor to reach this famous mantle.
While the original mission failed, drilling techniques used at the time were now used to collect samples from the sea floor. The “A trip to the center of the earth” However, it will be later.