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Showing posts with label Biology. Show all posts
Showing posts with label Biology. Show all posts
Tuesday, January 30, 2018
THE UNDERWATER FOREST WITH ALIEN-LIKE LIFEFORMS
©http://ottersandsciencenews.blogspot.ca/. Unauthorized duplication of this blog's material is prohibited. Excerpts and links may be used, provided that full credit and link is given to Otters and Science News Blogspot. Link to this post: http://ottersandsciencenews.blogspot.ca/2018/01/the-underwater-forest-with-alien-like.html - Thank you for visiting my blog.
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Wednesday, January 4, 2017
SCIENTISTS RECLASSIFY PART OF THE HUMAN DIGESTIVE SYSTEM AS A NEW ORGAN - This may help in a better understanding of digestive disease
©http://ottersandsciencenews.blogspot.ca/. Unauthorized duplication of this blog's material is prohibited. Excerpts and links may be used, provided that full credit and link is given to Otters and Science News Blogspot. Link to this post: http://ottersandsciencenews.blogspot.ca/2017/01/scientists-reclassify-part-of-human.html - Thank you for visiting my blog.
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The mesentery was long-believed to be made up of separate structures
But a new study has shown that it is one continuous organ
Researchers say the next step is understanding its function in the body
The finding could aid better understanding and treatment of abdominal and digestive disease
Forget what you were told in biology class, as researchers have classified a brand-new organ inside the human body.
Researchers from University Hospital Limerick in Ireland used complex microscopy to show that the mesentery was one continuous organ.
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WHAT IS THE MESENTERY?
The mesentery is a fold of the peritoneum which attaches the stomach, small intestine, pancreas, spleen, and other organs to the abdomen. Until now, it has been overlooked in medicine as a fragmented structure.
The mesentery was long-believed to be made up of separate structures, but a new study has shown that it is one continuous organ. Researchers hope that the reclassification will aid better understanding and treatment of abdominal and digestive disease.
Researchers from University Hospital Limerick in Ireland used complex microscopy to show that the mesentery was one continuous organ.
Professor J Calvin Coffey, who first discovered the organ, said: 'In the paper, which has been peer reviewed and assessed, we are now saying we have an organ in the body which hasn't been acknowledged as such to date. The anatomic description that had been laid down over 100 years of anatomy was incorrect. This organ is far from fragmented and complex. It is simply one continuous structure.'
The finding has led to Gray's Anatomy – one of the most widely-used series of medical textbooks in the world – being updated to include the new organ.
Continue reading and see illustrations
Thursday, September 22, 2016
HOMO DEUS AND ARTIFICIAL INTELLIGENCE - A CHILLING WARNING BY AUTHOR YUVAL NOAH HARARI - WATCH FASCINATING INTERVIEW - We are one of the last generations of HOMO SAPIENS
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According to Professor Harari, extreme technological advancements towards artificially enhanced humans is not something for the far future. It's happening right now, and the most astounding results will be seen in the next decade or so.
Yuval Noah Harari is an Israeli historian, tenured professor at the Department of History of the Hebrew University of Jerusalem, and the author of the international bestseller Sapiens, A Brief History of Humankind
More interviews with Yuval Noah Harari here:
http://www.ynharari.com/media/radio/
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A pro-animal rights advocate, Harari says that future enhanced super humans may treat ordinary Homo Sapiens like you and me with the same ruthlessness with which we treat animals today.
VIDEO: Yuval Harari -
Will Technology Help Us Become Immortal?
More interviews with Yuval Noah Harari here:
http://www.ynharari.com/media/radio/
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Monday, August 8, 2016
MICROSCOPIC CREATURE DEFIES THE RULES FOR CELLULAR ENERGY MAKING - All animals, plants, and fungi have eukaryotic cells with mitochondria for power generation, except this one - MONOCERCOMONOIDES, tiny but awesome
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- We are spending enormous amounts of money and effort trying to discover signs of life on Mars and other places in outer space.
- However, we have not even acquainted ourselves with so many mysterious and weird life forms right here on Earth.
- They live in ocean depths, in caves, in forests, in ancient and remote geological areas, and in other places of difficult access to scientists.
- The question is, at the rate we are pillaging and polluting our planet, will those creatures survive our depredations long enough for us to find them alive?
We all have eukaryotic cells with mitochondria for energy making. The following discovery changes a fundamental notion they taught you in biology class.
The strange creatures that defy biology: Organisms power themselves in a different way to every other plant, animal and fungus on the planet
| Meet MONOCERCOMONIDES Not much to look at, but this guy is a revolutionary |
- A single-celled organism called Monocercomonoides lacks mitochondria,
- Mitochondria are believed to be essential for eukaryotic cells by generating power for cells
- Mitochondria use oxygen and sugar to produce packets of chemical energy.
- But monocercomonoides uses a chemical process involving sulphur.
- Researchers say that rather than evolving without mitochondria, the creatures lost them at some point in their past
Biologists have discovered a strange single-celled creature which lacks the usual cellular 'power stations needed' to produce energy.
It was thought all complex cells, including animals, plants and fungi, contained the tiny power-producing organs called mitochondria.
But a team in the Czech Republic has discovered a microscopic creature that contains no trace of them at all, making them a biological oddity.
The creature, a type of single-celled organism called Monocercomonoides, is at odds with the idea that mitochondria are essential components of eukaryotic cells.
Continue reading and see more illustrations
Continue reading and see more illustrations
Thursday, April 28, 2016
THE FLASH OF LIGHT AT THE MOMENT WHEN HUMAN SPERM MEETS AN EGG AS SEEN BY SCIENTISTS DURING IVF EXPERIMENTS
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Sparks really do fly: Scientists discover flash of light when new life is formed at the moment a sperm meets an egg
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- This is the first time zinc sparks have been captured in a human egg
- The size of the sparks is a direct measure of the quality of an egg
- Its discovery has potential to help doctors choose the best eggs during IVF
- Researcher said: 'If you can look at the zinc spark at the time of fertilization, you will know immediately which eggs are the good ones to transfer in in vitro fertilization (IVF).
Continue reading and see images from electron microscope
Tuesday, March 29, 2016
PLAYING GOD, SCIENTISTS CREATE ARTIFICIAL LIFE - A tiny bacterial cell nicknamed SYNTHIA 3.0 marks the start of a new era in biology - This technology could be used to create a biological weapon. - Those genes could also jump species, creating an incurable plague.
©http://ottersandsciencenews.blogspot.ca/. Unauthorized duplication of this blog's material is prohibited. Excerpts and links may be used, provided that full credit and link is given to Otters and Science News Blogspot. Link to this post: http://ottersandsciencenews.blogspot.ca/2016/03/playing-god-scientists-create.html - Thank you for visiting my blog.
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Let there be artificial life! Tiny lifeform created with just 473 'essential' genes could unlock the secrets of our existence
Scientists have created a new artificial bacterial cell nicknamed Synthia 3.0
They did this by stripping down the bacterial genome to just 473 genes
These were the minimal genes found to be essential to maintain life
It could lead to new forms of customised synthetic life capable of cleaning up pollution, producing biofuels or pumping out vaccines on demand
Continue reading and see microscopic images
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| DR CRAIG VENTER |
Continue reading and see microscopic images
Wednesday, February 18, 2015
THE WONDERFUL DEFENSIVE ARMY WITHIN THE BODY - Video shows white cells attacking parasitic invader - The cells belong to a mouse but they work the same way for other mammals like us
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Continue reading and watch video here:
Thursday, August 29, 2013
MAD SCIENCE - MINIATURE HUMAN BRAIN GROWN IN LAB
Pea-sized brains? Incapable of thought? I thought those existed already. Particularly among those promoting nuclear power energy.
More seriously, the implications on the ethical level are considerable. But not in our society where values, when they exist at all, are subject to relativistic and utilitarian interpretation.
Miniature "human brains" have been grown in a lab in a feat scientists hope will
transform the understanding of neurological disorders.
The pea-sized structures reached the same level of development as in a
nine-week-old foetus, but are incapable of thought.
Scientists at Institute of Molecular Biotechnology of the Austrian Academy of
Sciences have now reproduced some of the earliest stages of the organ's
development in the laboratory.
They used either embryonic stem cells or adult skin cells to produce the part of
an embryo that develops into the brain and spinal cord - the neuroectoderm.
The "mini-brains" have survived for nearly a year, but did not grow any larger.
There is no blood supply, just brain tissue, so nutrients and oxygen cannot
penetrate into the middle of the brain-like structure.
Read more - http://www.bbc.co.uk/news/health-23863544
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WE HAVE MARTIAN ORIGINS
The clue to our Martian origin is an oxidized form of the element molybdenum, which may have been crucial to the origin of life, likely available on Mars long ago, but unavailable on Earth.
Evidence is building that Earth life originated on Mars and was brought to this planet aboard a meteorite, said biochemist Steven Benner of The Westheimer Institute for Science and Technology in Florida.
It’s only when molybdenum becomes highly oxidized that it is able to influence how early life formed, This form of molybdenum couldn’t have been available on Earth at the time life first began, because 3 billion years ago, the surface of the Earth had very little oxygen, but Mars did.
It’s yet another piece of evidence which makes it more likely life came to Earth on a Martian meteorite, rather than starting on this planet.
Organic compounds are the building blocks of life, but they need a little help to make things happen. Simply adding energy such as heat or light turns a soup of organic molecules into a tarlike substance. That's where oxidized molybdenum comes in. Inserting it or boron, another element, into the mix would help organics make the leap to life.
Read more - http://www.space.com/22577-earth-life-from-mars-theory.html
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Tuesday, June 4, 2013
BIOLOGY NEWS -
The marvelous thing is that all these microscopic parts are working in harmony so that you can live and function in an optimal way. Your body is also equipped to make repairs, and even to compensate when something is lost or damaged. It is nothing less than a miracle of engineering.
Pictures: http://www.dailymail.co.uk/sciencetech/article-2335596/Photographs-reveal-alien-planet-No--breathtaking-animated-simulations-world-HUMAN-BODY.html
RELATED: Who is in charge of your mind (you or your microbes)?
10% of our cells are human, 90% are microbial - we look human because human cells are much larger, but the total human cell count is still 10% of the body - http://ottersandsciencenews.blogspot.ca/2013/05/psychology-issues-who-is-in-charge-of.html
THE UNIVERSE WITHIN YOUR BODY
PICTURES of what we are - 90% microbe cells and only 10% human cells.
These animated simulations look like something out of a science fiction alien world - but it's all inside of you. Truly amazing! See pictures of bacteria and viruses as well as other miniscule sections of human organs magnified 10 million times their real size. They are quite beautiful, in a strange way.
The marvelous thing is that all these microscopic parts are working in harmony so that you can live and function in an optimal way. Your body is also equipped to make repairs, and even to compensate when something is lost or damaged. It is nothing less than a miracle of engineering.
RELATED: Who is in charge of your mind (you or your microbes)?
10% of our cells are human, 90% are microbial - we look human because human cells are much larger, but the total human cell count is still 10% of the body - http://ottersandsciencenews.blogspot.ca/2013/05/psychology-issues-who-is-in-charge-of.html
Friday, May 24, 2013
ANIMAL ISSUES -
Read more: http://io9.com/butterflies-remember-a-mountain-that-hasnt-existed-for-509321799
MONARCH BUTTERFLIES REMEMBER A VANISHED MOUNTAIN
During their migration south, monarch butterflies fly over Lake Superior and at one point they veer east and then south again. Why do they do this?
Scientists believe that in the distant past a mountain used to block their path. The old flight map is still embedded in their genes, and they follow it, although the mountain was eroded away a long time ago.
Monarch butterflies are some of the toughest insects in the world. They migrate from southern Canada to Central Mexico. The journey outlasts their individual lifetimes, so they lay eggs along the route. No one generation makes the whole trip.
And for a little geology, I'd like to recommend Ghost Mountains and Vanished Oceans by John Wilson. I really enjoyed this book about ancient geological changes in what is now Canada and the United States.
http://www.amazon.com/Ghost-Mountains-Vanished-Oceans-America/dp/1554700477
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