HumanitiesAcademiaSTEMSocial SciencesAgriculture & Farming
  • The great horned owl is an avian apex predator. Possibly this bird is the finest predator to have ever lived.

    The Great Horned Owl

    The Great Horned Owl

    by Wesman Todd Shaw38

  • Different Types of Stars in the Universe - Physical characteristics and images of the many different kinds of stars, from red giants to white dwarfs.

    Different Types of Stars in the Universe

    Different Types of Stars in the Universe

    by Thomas Swan43

  • The longhorned tick is native to East Asia and has been introduced to the United States. In some parts of the world, it transmits microbes that cause disease in humans. Its population is increasing in the U.S. It hasn't caused health problems in the country yet but is being monitored carefully.

    The Invasive Longhorned Tick and Its Potential Health Effects

    The Invasive Longhorned Tick and Its Potential Health Effects

    by Linda Crampton42

  • A look at the diversity of Arizona's Coconino National Forest and some of the wildlife that makes its home there, in the northern part of the state, including the San Francisco Peaks near Flagstaff

    Wildlife of the Coconino National Forest

    Wildlife of the Coconino National Forest

    by Deb Kingsbury45

  • This article summarizes the threat that asteroids and comets pose to the Earth. A short history of some of the greatest asteroid impacts on Earth is also provided.

    Will an Asteroid Strike Planet Earth?

    Will an Asteroid Strike Planet Earth?

    by Kelley Marks43

  • The banana spider is famous for its beautiful web, which appears to be golden when it shines in the sun. The spider's venom is of the same type as that of a black widow, but much weaker.

    Facts About Banana or Golden Orb Spiders

    Facts About Banana or Golden Orb Spiders

    by Paul Goodman64

  • The Sunshine State has all sorts of over-sized bugs and creep-crawlies. This article looks at the biggest spiders in Florida.

    6 Biggest Spiders in Florida

    6 Biggest Spiders in Florida

    by Paul Goodman11

  • Exciting disciplines that combine biology and math include biostatistics, epidemiology, bioinformatics, mathematical biology, and population ecology. The disciplines offer interesting careers.

    Careers That Combine Biology and Mathematics

    Careers That Combine Biology and Mathematics

    by Linda Crampton46

  • Hair color is primarily genetic, and red hair is caused by mutations in the MC1R gene. The gene for red hair also causes an increased sensitivity to sunlight and a reduced sensitivity to anesthesia. Contrary to internet rumors, redheads are not going extinct! Famous redheads include Queen Elizabeth I and Malcolm X.

    Redheads: The Genetics of Hair Color

    Redheads: The Genetics of Hair Color

    by Leah Lefler105

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  • The idea of going to the centre of the Earth was brought to prominence in Jules Verne's classic 1884 Sci-Fi novel 'Journey to the Centre of the Earth, but how far have we gone towards this goal?

    The Deepest Hole in the Earth - Kola Superbole Hole

    The Deepest Hole in the Earth - Kola Superbole Hole

    by Ian McKay2

  • Some physicists are positing the idea that the Universe may be aware of its own existence.

    Is the Universe Conscious?

    Is the Universe Conscious?

    by Rupert Taylor6

  • Mucus has vital functions, such as trapping germs in the airways, protecting the stomach lining from an acid attack, and lubricating the passage of materials through the digestive tract. Excess mucus can cause health problems, however. Mucus in the nose is often referred to as snot.

    Mucus in the Human Body: Functions and Health Problems

    Mucus in the Human Body: Functions and Health Problems

    by Linda Crampton47

  • Have you have considered the power potential of the human body? What about the energy stored in a raindrop? In this article I discuss five strange methods that could one day become an integral way that civilization generates electricity.

    Five Alternative Forms of Energy You Have Never Heard of

    Five Alternative Forms of Energy You Have Never Heard of

    by Christopher Wanamaker28

  • Crows and ravens are similar, but definitely not the same. It's easy to tell them apart once you learn to spot these distinct differences. A side-by-side comparison of American Crows and Common Ravens.

    Ravens vs. Crows: They Are Not the Same

    Ravens vs. Crows: They Are Not the Same

    by Joanna Fonté0

  • The Tasmanian devil is an endangered animal whose population is decreasing. The main reason for the decrease is devil facial tumor disease. Immunotherapy may one day be used to treat the condition.

    Tasmanian Devils and Devil Facial Tumor Disease (DFTD)

    Tasmanian Devils and Devil Facial Tumor Disease (DFTD)

    by Linda Crampton27

  • I am in awe of our world of nature, particularly the tree kingdom. Visit any local arboretum and just experience them and you will think twice about the legacy you leave. Don't litter, be kind to the earth and appreciate what you have.

    The Atlas Cedar - Cedrus Atlanticus

    The Atlas Cedar - Cedrus Atlanticus

    by thoughtfulgirl20

  • Honey bees are very smart despite having tiny brains. They can learn; they have good memories, and they can communicate using a unique symbolic language.

    How Smart Are Honey Bees?

    How Smart Are Honey Bees?

    by Catherine Giordano27

  • In the search for dark matter, many different possibilities exist. One of these is axions, and their potential is real.

    What Are Axions?

    What Are Axions?

    by Leonard Kelley0

  • The dragon blood tree of Socotra Island has an unusual appearance. It secretes a red resin known as dragon's blood when its bark is injured. The resin is used in many ways. The island is home to other fascinating and often unique organisms besides the tree.

    The Strange Dragon Blood Tree of Socotra Island

    The Strange Dragon Blood Tree of Socotra Island

    by Linda Crampton54

  • Michael Faraday, the son of an 18th Century blacksmith, became one of the greatest scientists of his age. One of his discoveries transformed the world and changed the way we live forever.

    Michael Faraday for Kids: His Life, Work, and Legacy

    Michael Faraday for Kids: His Life, Work, and Legacy

    by Amanda Littlejohn57

  • Parasites are everywhere. They live on your skin, in your hair and even inside you! Some are harmless, many are necessary for health, and a few are DEADLY. Let's find out more about crazy PARASITES...

    Top 10 Interesting and Fun Facts About Parasites

    Top 10 Interesting and Fun Facts About Parasites

    by Amanda Littlejohn28

  • Learn some facts about common songbirds of Pennsylvania and view pictures to help you identify and attract the birds in your backyard.

    16 Common Songbirds of Pennsylvania

    16 Common Songbirds of Pennsylvania

    by Eric Dockett31

  • Many people struggle to tell these two reptiles apart, but it isn't that difficult when you know what to look for. What is the difference between alligators and crocodiles? Well, there are essentially 8 main ways to tell them apart...

    The 8 Main Differences Between Alligators and Crocodiles

    The 8 Main Differences Between Alligators and Crocodiles

    by Paul Goodman90

  • Most commonly, you see brown or blue eyes but some people, whether it be luck or a medical condition, wind up with really cool and rare eye colors.

    6 Rare and Unique Eye Colors

    6 Rare and Unique Eye Colors

    by Tatiana235

  • This is the third page in a series of guides for anyone who wants to learn a little more about our night sky. This page looks at those most numerous of all objects visible in the night sky - the stars

    Astronomy—A Beginner's Guide to the Stars

    Astronomy—A Beginner's Guide to the Stars

    by Greensleeves Hubs10

  • Acanthamoeba is a microscopic, single-celled organism that can infect the cornea of the eye. It causes a disorder called Acanthamoeba keratitis, which is most common in contact lens users.

    Acanthamoeba Facts, Eye Infection, and Keratitis

    Acanthamoeba Facts, Eye Infection, and Keratitis

    by Linda Crampton40

  • Marmots live in mountainous areas of British Columbia. They are social and very vocal animals that often form colonies. One species—the Vancouver Island Marmot—is critically endangered.

    The Marmots of British Columbia: Wildlife in Canada

    The Marmots of British Columbia: Wildlife in Canada

    by Linda Crampton64

  • Learn about dragonflies, what they eat and how they fly as well as the type of habitat in which they live. We'll also explore some of the more popular myths and legends surrounding the dragonfly.

    Dragonfly Facts and Symbolism

    Dragonfly Facts and Symbolism

    by Melissa Flagg COA OSC56

  • Tomatoes are nutritious fruits (or vegetables) with an interesting history, but they often lack flavor compared to tomatoes of the past. A discovery by scientists should be helpful in creating tastier fruits. Some strategies for obtaining tomatoes with a better taste already exist.

    Tomatoes: Plant Facts, Interesting History, and Fruit Flavor

    Tomatoes: Plant Facts, Interesting History, and Fruit Flavor

    by Linda Crampton48

  • Russia's domesticated silver fox experiment gives genetic clues to the process of animal domestication. Wild foxes from fur farms have been domesticated and made available for the pet trade.

    How the Silver Fox Was Domesticated

    How the Silver Fox Was Domesticated

    by Leah Lefler19

  • Exploring the phenomenon of people thinking animals are "sad" in zoos because of the expression on their faces. Can you read an animal's mind by looking at it?

    The Sad Animals in Zoos Myth

    The Sad Animals in Zoos Myth

    by Melissa A Smith85

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