These facts will inform you about spiders, whether you are an enthusiast or a skeptical. Although spiders are small and mighty, they play a vital role in ecosystems around the world. Their habitats are shrinking, making them increasingly vulnerable. Spiders are just as valuable for the world as large animal species.
Spiders are arachnids. There are eight legs and two of them have specialized functions. They also have straw-shaped mouths that absorb liquids from prey. The smallest spider measures just one-fifth a centimeter in length. Spider silk is a liquid that they can produce. It is five times stronger and more durable than steel. They spin intricate webs in order to catch other insects. Vitamin K is found in silk, which reduces bleeding.
Spiders have a complicated courtship ritual, which involves lots of dance and gestures. In certain weather conditions, they can even balloon together. They can also create a spider web that can stop an airplane in its tracks. A spider's primary purpose is to capture prey and eat them. They are able to do this thanks to their incredible hearing and smell. They also have superpowers that enable them to sense vibrations and detect other creatures. They are also capable in detecting light. They can also run up walls to entice their prey into drinking their liquids.
Spiders are intelligent. They communicate with other spiders by using a complex system which includes sight, hearing, smell, taste, and smell. They also use vibrations to determine how far they are from their prey.
A good example is Phidippus ausdax spider. It has a specific set of hairs that allows it to detect particle motion. The spider can also hear from as far as 10 feet away.
Another example is the Peacock spider. This spider seduces its potential partner with a fan-shaped extension. It is also the smallest spider in the world. It measures only a quarter of centimeter in length. It also contains the first spider web in all of the world.
Spiders live for as long as 45 years. A typical spider can eat 10 percent of its body weight in food daily. The largest spiders are about the same size as a dinner plate. They can also capture large mammals. They're not the only ones who can do this. Some have even eaten bats. Some spiders can even be poisonous. Despite their frightening name, spiders can be quite harmless for humans. The American House Spider ranks as the most popular domestic spider in North America. Although it is too small for humans to bite, its fangs are strong enough that they can stick to smooth surfaces.
Another fun fact about spiders is that they have a drinking straw-shaped mouth. This spider also has secondary eyes that detect light and can use it to determine distance. They also use the same method to create a spider web. However, the smallest spider can fit on the head of a pin.
FAQ
How does your brain control the functions within your body?
To ensure that other organs and muscle functions work together, the brain sends messages. Everything in your body is controlled and managed by your brain. It tells your stomach how to digest food and your lungs how to inhale oxygen; it also tells your arms, legs and feet to move.
Your brain is made up billions of nerve cell networks connected in groups known as neurons. Action potentials on Axons are an electrical signal that neurons send to each other. Each neuron has a cell membrane surrounding its nucleus. The membrane contains channels that allow ions like sodium and potassium to enter the cell and leave it. The neuron is lit by an electric charge created by the movement of ions.
When a neuron fires, chemicals called neurotransmitters are released into the space between the neuron and the next neuron. Neurotransmitters bind with receptors on the second nerve cell, opening ion channel channels to allow ions in and out. In turn, the second neuron also fires.
When another neuron sends an impulse to the presynaptic neural cell, neurotransmitter is released. The impulse travels along an synapse between the neurons. The transmitter binds directly to the receptors in the postsynaptic nervous neuron, and triggers the firing.
They are vital for the communication between nerve cells. They also coordinate activity between different brain parts.
What is the most mysterious place on earth?
Antarctica is one of the most mysterious places on Earth.
This is why we find it so captivating. Because it is unlike anything else on Earth.
It is remote, isolated, and extremely difficult to visit. There is much more to this place than meets the eyes.
You will also find some of the oddest wildlife species in this natural wonder.
Let's find out how this mysterious destination became so famous.
Antarctica: The South Pole
Antarctica is named for no one. Some believe it refers to "land of ice". Others believe it derives from Greek mythology.
In ancient Greece, Antarktis was the name given to the island where Zeus' twin brothers were born. According to one source, one of the twins was conceived in winter. Therefore, the name antarctic.
Others believe that it is the Greek word anti, which means against, and tropos, which refers to turning. This would translate to land that is turned away from the sun.
Whatever the reason Antarctica has held a special fascination for people, it is undeniable.
It is the driest, windiest of all continents. It is too cold to support trees, plants, and animals.
And yet, this frozen wasteland is teeming with life.
About 90 percent of all living things on Earth live here. Here are approximately 50% of all the animal and plant species in the world.
What is it that makes Antarctica so unique? Here, water freezes in ice rather that vaporizing into the atmosphere.
This causes large masses to form of ice which float high above the ground.
These floating glaciers cover 80% of the continent. They're getting bigger every year.
Since 1960, the Antarctic ice sheets has grown 60ft.
If the melting continues, sea level could rise up to 200ft. This could lead to massive flooding across the globe.
However, not all scientists believe this to be bad news. Some scientists claim that global warming could be good for us. They say that as temperatures rise, the ice sheets might melt faster, causing floods that flush out tons of toxic chemicals from our soil and bodies.
However, others caution that this theory sounds a lot like a plot in a science fiction movie.
What dark secrets can Hollywood keep from you?
Hollywood is filled with secret societies. Some secret societies are cultlike groups that have strict rules and rituals. Other clubs are for people who share common interests.
There are also other, more evil organizations that control large parts of the industry. These include companies like the MPAA ("Motion Picture Association of America"), which determines film ratings. The RIAA ("Recording Industry Association of America") sets music licensing fees.
Many unions and guilds represent actors, directors writers, producers, and others. The majority of major television networks and movie studios are owned by large corporations.
It is obvious that, no matter how secretive or obtuse a group appears, someone knows exactly what they do. But that doesn't mean we should fear them.
Instead, we should embrace them. Because they help us make better choices.
They also tell us about the movies that are most likely to succeed and which songs are most popular.
They allow us to make informed decisions about what we buy, watch and listen to.
Because we can trust them, we can ignore their advice when it conflicts with our tastes.
They are more powerful than ever because we chose to ignore them. They are the ultimate arbiters and judges of taste.
If you don't like their words, you can choose to ignore them.
So now let's look at some of the lesser-known but still very real Hollywood secret societies.
You can see why they are so vital.
What is the most secretive place in the world, and why?
The answer to that question may shock you. It might even make you uncomfortable because it challenges our perception of reality and how we live. But there is a reason that this place exists. It isn't what you would expect.
The ancient Greeks called it the City of God. In the Bible, it was known as the City of Destruction.
It's also known as Kashi (Kashmir) in India. It's known in Russia as Novgorod.
Here in America, however, it is called The Village That Disappeared.
One small community in western New York State with 1,200 residents vanished without a trace. It was abandoned without any remains, including no bodies, cars, or houses. The only thing that survived was a road sign, which pointed to its former location.
This tiny town vanished without any trace. Some believe the earth swallowed them up. Others claim that a meteorite hit destroyed it. Some believe that it was taken by aliens.
Despite what may have happened, the people who lived in this once-thriving area are confident that their town will not be lost forever. They had just relocated to another town.
You can even track the disappearance of Zugspitz on a dedicated website.
You might be wondering where this town went. Well, it's in Switzerland!
Zugspitze is located on the border between Germany and Austria. Lake Zugspitze lies just above the summit of the mountain.
It's always fascinated me how so many towns disappear, yet others remain. Is it possible that some towns disappear and others are preserved? I set out to find out.
I wanted to know more about the mysterious disappearing towns. What causes a community to disappear? What makes a place disappear?
There are many theories to explain the phenomenon of disappearing towns. One theory suggests that a community disappears when all of its buildings are removed. Another theory is that the town moves to another place. A third theory states that the town didn't exist at all.
No matter what theories you may have, there is no doubt that many towns across the globe were swallowed by the ground. This video explores the history of these towns and examines their current state.
Statistics
- The average human adult male heart rate is between 70 and 72 beats per minute, while the average for adult women is between 78 and 82 beats, which is significantly faster, according to 2014 published in the Journal of Clinical and Diagnostic Research. (romper.com)
- It might not sound like something that's truly plausible — and it is quite rare — but according to a 2015 study published in the Asian Cardiovascular & Thoracic Annals, it's possible to hurt yourself and even break a rib just by sneezing. (romper.com)
- A 2012 paper published in the Proceedings of the National Academy of Sciences reported that people blink about 15 to 20 times each minute, meaning, if you do the math, you spend about 10% of the time that you're awake blinking. (romper.com)
- "It is estimated that 75% of people have at least mild gum disease, with the most common symptoms being bleeding when brushing, bad breath, and dark and swollen gums," Dr. Ron Baise, a London-based dentist, tells Romper. (romper.com)
- You spend about 10% of your time awake blinking (romper.com)
External Links
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Hollywood Actors and Actresses with PhDs
Many prominent names include Oprah, Bill Gates. Steve Jobs. Bill Gates. Oprah. Winfrey. Michael Jordan. Barack Obama. Famous scientists include Nikola Tesla, Charles Darwin, Isaac Newton, Marie Curie, Linus Pauling, Richard Feynman, Albert Einstein, Robert Goddard, John Bardeen, James Watson, Francis Crick, Erwin Schrodinger, and many others.
Some celebrities have received Ph.D. degrees such as actor Tom Hanks, Barbra Streisand and Meryl Streep.
These stars all received their doctorate degrees at different universities around world. Many of these celebrities became successful business leaders and entrepreneurs after earning their PhDs.
Some other famous actors and actresses have PhDs include the following:
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Actor David Schwimmer received an MBA at Columbia University Business School. He also attended the Tisch School of the Arts at NYU.
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Actress Jennifer Aniston graduated from Dartmouth College with her Bachelor of Science degree. Harvard University granted her Master of Science in Organizational Behavior, Human Resources Management.
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Julia Roberts was a Yale University Biology student before she received her Masters of Public Administration (Georgetown University) as an actor.
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Actor Edward Norton graduated from Brown University with his Bachelors of Fine Arts. He received his Doctorate in Molecular Biophysics & Biochemistry from Stanford University.
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Maggie Gyllenhaal, actress, graduated Barnard College from with a Bachelor in English Literature. Columbia University gave her her Master of Social Work.
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Sarah Jessica Parker, actress was awarded a Bachelor of Arts in psychology at Wellesley College. Columbia University gave her her master's in clinical psychological research.
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Sandra Bullock is an actor. She earned her Bachelor of Arts at the University of California Berkeley. After graduating from Cal Berkeley, she went on to earn her Masters of Education at UCLA.
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Reese Witherspoon graduated from Tulane University with a Bachelor of Arts (Political Science). She then earned her Master of International Affairs from the Fletcher School of Law and Diplomacy at Tufts University.
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Michelle Williams is an actor who graduated from Wesleyan University, where she received a Bachelors of Arts degree. She then obtained her Master of Arts degrees in Psychology from Boston University.
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Actress Shailene Woolley graduated from Brigham Young University Hawaii with a Bachelor in Arts. She then went to graduate school for her Master's in Environmental Studies from San Francisco State University.
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Actor Will Smith graduated from Howard University with a bachelor's degree in Communications. He then earned his Master of Business Administration from the Kellogg Graduate School of Management at Northwestern University.
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Queen Latifah was an actress who graduated from Michigan State University with her Bachelor of Science degree in Nursing. She then earned her Master of Public Health from the University of North Carolina at Chapel Hill.
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Amy Adams is an actor who graduated from Juilliard School in New York with a Bachelors of Music degree. She earned her Master of Music degree from the Manhattan School of Music.
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Halle Berry, actress, graduated with a Bachelor of Fine Arts at the American Conservatory Theater. Carnegie Mellon University gave her her Master of Fine Arts in acting.
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Brittany Murphy, an actor, graduated Santa Monica High School with a Bachelor of Arts in Theatre Arts. From New York Film Academy, she obtained her Masters of Fine Arts Acting.