An amoeba is a one-celled creature with interesting features. Amoeboid organisms live in the environment and in our body. Some are harmless, but others cause disease.
Cinnabar is a beautiful but toxic red mineral made of mercury (ll) sulfide. It’s used as a source of mercury and to make an artist's pigment called vermilion.
Bumble bees have surprisingly capable brains. They can play a simple version of soccer and pull a string to get a reward. They may even experience optimism.
The rainbow eucalyptus is an unusual tree with a beautiful, multicoloured trunk. The trunk's colours change as the tree sheds strips of bark, creating living art.
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
The safflower plant provides a useful vegetable and cosmetic oil and an attractive dye for textiles. A genetically engineered form of the plant can make insulin.
The mathematical notion of "nothing" is actually quite enormous. There is more emptiness in the universe than there is physical substance. Follow along with me as I clarify this concept.
The mucus that covers fish has several functions, including protection from multiple dangers and serving as food for young fish. The substance may also be useful for us.
Birds are among the most beautiful creatures on Earth. They're also some of the weirdest! Check out these crazy-but-true interesting and fun facts about our feathered friends...you'll be amazed!
The Surinam toad has a strange, flattened body. During reproduction, the female’s skin absorbs the fertilized eggs and the young toads develop under her skin.
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.
Pandas are interesting and mysterious creatures that have long baffled scientists. There are many things about these endangered animals that many people do not know.
Marmots are large ground squirrels that live in mountainous areas of British Columbia. They are social and very vocal animals that often form colonies. Three species of animals are commonly known as marmots in BC. One of them—the Vancouver Island Marmot—is critically endangered.
The monkey puzzle tree is a very strange and interesting plant. It's native to South America but grows in parks and gardens in other areas as an introduced plant.
The wood frog survives freezing. A study of its adaptations for survival may be helpful in understanding human health problems and in the use of organs for transplants.
Elizabeth Kolbert's "The Sixth Extinction" won the 2015 Pulitzer for non-fiction, deservedly, for its blend of places, people, creatures and science. Get the gist in this lavishly illustrated Hub.
If you want to identify a mineral, there are some properties of minerals that you need to examine to narrow it down. This is a guide to how scientists identify minerals by their physical properties.
Although human blood is usually red it may have a different color, which indicates the presence of a health problem. Animals have a wide variety of blood colors.
Figuring out how the moon was created is one of the deepest mysteries of archeological astronomy. We do have ideas though...
At least 1000 types of fish—and probably many more—produce sounds. These sounds include pops, clicks, purrs, grunts, hums, hoots, rattles, and tinkles.
The Malayan tapir is an unusual animal with an extensible and mobile proboscis, or mini-trunk. Despite its size and bulk, this endangered animal can move fast.
Some sharks produce beautiful patterns of light in a process called biofluorescence. The light emission may have important functions.
Few people are aware of how black widow spiders contributed to the World War II effort, but they had a significant impact. In fact, a LIFE magazine article published on August 30thof 1943 credited each of several government employed arachnids with spinning between 100 and 180 feet of thread a week.This thread was then used to make cross hairs in the gunsights of U.S. Army instruments of war.
The common raven is an intelligent and interesting bird that plays an important role in folklore. The bird is found in many countries and habitats.
Lobsters are interesting animals to observe and study in a natural setting. They are popular food items, but the way in which we kill them is controversial.
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.
Because caffeine is a substance used by the young and old in every country and on every continent, it affects billions.
The Ethiopian wolf lives in Africa at high elevations. It's the most endangered member of the dog family, or the Canidae. The animal faces some serious threats.
The bunya pine produces huge and often very heavy cones. Its large seeds are both edible and tasty. The tree has a strange appearance and some unusual features.
This article looks at ten sandy beaches of extraordinary colour, what they are composed of and how they are formed, with illustrations of all ten
Saliva is made by salivary glands and has important functions. The glands may sometimes develop stones. In Sjogren's syndrome, insufficient saliva is made.
Oregon grape is an attractive plant with edible berries. The plant contains berberine, which may have important health benefits.
Bone marrow is an essential tissue. It contains stem cells that produce all of our blood cells. Bone marrow transplants are used to treat some serious diseases.
Although cockroaches are often seen as disgusting creatures, there are a lot of fascinating truths and fun facts you still don't know about them. Learn more about this amazing creature here.
Fishing cats are wild animals that feed primarily on fish and are at ease in water. Unfortunately, their population is in trouble due to habitat destruction.
Bacteria in the genus Yersinia have major effects on our lives. One species causes bubonic, septicemic, and pneumonic plague. Others cause foodborne illness. One may eventually help to treat cancer.
A microscope is a gateway to a fascinating and normally invisible world. A home microscope is entertaining and educational for children and for adults, too.
The human skeleton has vital functions. It provides support and protection, allows us to move, makes blood cells, and stores fatty acids and minerals.
Sickle cell disease is painful for sufferers and can sometimes be dangerous. Genome editing may one day correct the mutation that causes the disorder.
Black holes, mysterious objects of the universe, have many different types. Do you know the differences between them all?
Parkinson's disease is caused by the death of brain cells that produce dopamine. Stem cell technology may provide a more effective treatment than current methods.
Unripe lychees and ackee fruits contain toxins. Both fruits should be eaten only when ripe. In addition, it's very important that ripe ackee is prepared properly.
The axolotl is a fascinating and critically endangered amphibian. It stays in its larval form throughout its life and has very impressive powers of regeneration.
The triangle is the simplest polygon. This tutorial covers types of triangles, Pythagoras's theorem, cosine rule, sine rule, various ways of calculating the area of a triangle and basic trigonometry
A guide to the best places in the world to see wild tigers, such as Bengal tigers in India's national parks or Sumatran tigers in Indonesia.
Some animals absorb chloroplasts or algal cells, which make food inside the animal's body. At least one kind of animal can make electricity from solar energy.
A solar flare in 1859 caused power spikes and disrupted the world's telegraph system. How much damage could a massive solar flare do to power and communications today?
Some people believe that NDE is proof of an afterlife. However, science provides alternate, and more plausible, explanations.
African civets are interesting animals with some unusual characteristics. They are kept in captivity on civet farms so that their musk can be collected.
Some chemicals in fungi can act as medicines for humans. Three of these chemicals are penicillin, lovastatin, and cyclosporine. Lentinan and eritadenine may also be medicinal.
Learn interesting facts about the behavior of the blue jay, view pictures, and learn how to keep this bully away from your bird feeder.
What role does water play in life and what would happen if we were to lose it or it didn't exist? There are already parts of the world where we can see how life would change, if there were no water. This article explores it further.
The resins that some trees secrete when they're wounded can be useful for humans. Some are used as perfumes or medicines. Others have preserved ancient life forms.
Chloroform can act an anesthetic, but it’s toxic and causes serious health problems. There are ways to limit our exposure to the chloroform in the environment.
Hydrochloric acid is made in the stomach and is a helpful chemical. However, too much or too little acid or acid in the wrong place can cause problems.
Lichens are interesting organisms that are important in their environment and useful for humans. Some produce chemicals that are potentially dangerous for us, however.
The black vulture and the turkey vulture are often called "Buzzards." These birds are anything but Buzzards. Buzzards are European birds related to Eagles. Vultures and condors differ from buzzards.
We experience many Boyle's law applications in real life every day. Most people don't know it, but an example of Boyle's law is responsible for every moment we are alive.
Asian and African golden cats are beautiful animals whose populations are near threatened. The cats are in trouble because of human activity in their habitat.
What different species of animals can interbreed and how is it possible? From mules to ligers learn all about hybrids in this comprehensive article.
Dandelions have culinary benefits and also produce a latex that can be used to make rubber. This is important, since the supply of natural rubber is decreasing.
This guide to laboratory signs and their meanings has a detailed description to each sign and symbol, with photos. A must read for anyone working in a laboratory with hazard signs...
Many crocuses bloom in the early spring and are a lovely sight. One type makes saffron. The toxic autumn crocus makes colchicine, which can act as a medicine.
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.
When someone experiences a heart attack, cells in their heart die. Scientists have found two ways to replace the lost cells in rodents. The techniques may one day work in us.
Ballistics is a branch of mechanics which deals with the motion of projectiles launched into the air or space. Solving these type of problems involves using Newton's equations of motion
The fate of an American landmark is one of the saddest stories in recent history. The American Chestnut tree was an integral part of the forest landscape when settlers arrived on American shores. However after a airborne virus was introduced, the trees were wiped out by the billions.
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...
Is Nibiru, the legendary Planet X, a real threat bring to doomsday to our planet? Could it be closer than we feared?
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.
Stages in the Life Cycle of Stars - From protostars to white dwarfs, neutron stars, black holes and supernovae. The stages in stellar evolution are described.
The frilled shark is a strange, deep water shark with a wide head, a huge mouth, and a long, eel-like body. It’s caught as bycatch and is near threatened.
Stegosaurus is one of the most well known and fascinating dinosaurs, but most people probably don't know much about these amazing prehistoric creatures.
Bleach has potent antimicrobial properties and is also able to remove stains from fabrics. It has many uses, but it's potentially dangerous.
Earwax is made by the lining of the ear canal and has important functions. An adequate amount of wax is necessary, but too much can lead to impaction and pain.
Cockroaches. They may be icky but they've got a lot of tricks up their hard little sleeves and you might be shocked to know what they're capable of and where they came from. Turn your repulsion to fascination right here with one click. I dare you.
Goldfish are interesting fish that have some surprising features. The animals are popular pets. They are found in the wild, where they may become very large.
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.
Proteins in the body have essential jobs. They enable us to move, transport materials and signals, control chemical reactions, stop bleeding, and fight infections.
Wild relatives of some major agricultural crops are in trouble. We need the genetic diversity in wild crops and the lower diversity present in cultivated ones to provide food security for the future.
Inky cap mushrooms become a black, inky liquid in order to disperse their spores. Some contain coprine, which increases the unpleasant effects of alcohol intake.
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.
Exciting disciplines that combine biology and math include biostatistics, epidemiology, bioinformatics, mathematical biology, and population ecology. The disciplines offer interesting careers.
Coral bleaching is an event in which corals lose their pigment and main source of food. It often causes corals to die. Oxybenzone in sunscreens may contribute to coral bleaching.
Solving problems related to plane geometry especially circles and triangles can be easily solved using a calculator. Here is a comprehensive set of calculator techniques for circles and triangles in plane geometry.
Horsehair worms are long and slender animals that writhe and form shapes resembling knots with their body. They are parasites during part of their life cycle and at one point control the behaviour of their host.
Earwigs have a fearsome image but aren't dangerous. They sometimes become garden pests. Natural control methods can be very helpful in dealing with the insects.
Irises are beautiful flowers that have a wide variety of colours. Some are used to make orris root, which has a lovely scent but can cause an allergic response.
Serendipity is a happy and unexpected event that seems to occur by chance. It's often called a “lucky accident”. Serendipitous discoveries are important in science.
Gold has fascinated humans since it was first discovered. It has inspired love, poetry, art and music as well as greed, murder and warfare. Discover about gold with these amazing facts, pics, videos!
This is the fourth page of a series of guides to the night sky for beginners. Here, I look at the most prominent objects other than our Moon and the stars, which can be easily seen in the night sky.
The deadly nightshade plant, or belladonna, is extremely poisonous. It contains atropine, which is potentially dangerous but has important medical uses.
See pictures to help you identify the male and female Rose-breasted Grosbeak, plus learn facts about its migration and behavior.