Hi #AmazingNature Community!
Always wishing everyone a good day. Let's remember that the sun rises for @everyone!😃🌞
Once again, I bring you content that I consider to be of quality, this takes several hours of reading, comprehension and writing.💡📚
But more than that, this is one more publication so that together we can appreciate and contemplate how wonderful our nature is! I prefer the marine and aquatic environment, that is my specialty🐬🐟🦈🦀🐢🐳🐙 I hope you enjoy!🐬🐟🦈🦀🐢🐳🐙🤗
Do you remember the tardigrades? I previously wrote a detailed post about these organisms and why science admires them so much.
In the following link you can find more information about it: https://peakd.com/hive-127788/@juanbg/the-immortal-water-bears-tardigrada-phylum-do-they-live-on-the-moon
Photo by: University of California
These curious animals have been on the lips of many researchers and even those who are simply fond of nature and living beings, previously we talked about the reasons. Their high resistance to the most extreme conditions is surprising, even a few months ago a journalistic note came out stating that they are probably living in space right now!
Animation by BrightsBlog
In the article I previously shared with you we only talked at the "Phylum" level, that is, we talked about tardigrades in general. This time it is a single species that takes all the spotlight on this news: tardigrades are resistant, intelligent, and some see them as "immortal". How else can such small animals surprise us? ...
Photo by: Britannica
A journalistic note on Gizmodo by Miguel Jorge
We thought we knew everything about tardigrades
We knew that they were fascinating creatures, capable of withstanding fatal conditions such as extreme heat and pressure, or even the vacuum of space. How else can they surprise us? Knowing that there is a species that is capable of defending itself against light using a fluorescent shield.
Photo by: Steve Gschmeissner
The journal Science reported that scientists at the Indian Institute of Science have been investigating the survival mechanisms used by tardigrades, collecting organisms from the area and subjecting them to extreme conditions. In one of the experiments, the team exposed the tardigrades to a germicidal UV-type lamp in doses to kill bacteria and worms in minutes.
Hypsibius exelaris
The results showed that a tardigrade species called Hypsibius exelaris resisted a little more than other tardigrade species, surviving around 15 minutes of exposure to ultraviolet light. Why was this caused?
Even more interesting was the realization that there was a species that seemed to be immune. All the reddish-brown specimens of this species survived the light and were even treated with a dose four times stronger, and about 60 percent of them lived 30 days longer!
Photo by: INVDES
Researchers say this intriguing species was found living on a moss-covered concrete wall and is part of the genus Paramacrobiotus.
They change color! Further investigation using a fluorescence microscope revealed that these water bears actually turned blue when exposed to ultraviolet light.
They discovered that the reason for this is that they use a "shield" that is under their skin and that consists of a set of fluorescent pigments, this shield absorbs that lethal UV light and turns it into benign blue light! The researchers also made an impact, as they were able to extract these pigments and transfer them to the tardigrades Hypsibius Exelaris and C. elegans to double their survival rate under ultraviolet light.
Photo by: Frank Fox
What incredible beings❗️ Nature continues to impress us with what it can do, let's take care of it❗️
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