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Spiders - Spiders
Spiders
Spiders are predatory invertebrate animals with two body segments, eight legs, no chewing mouth parts and no wings. All spiders produce silk, a thin, strong protein strand extruded by the spider from spinnerets. Read More
Elephant Mimics
It's time to revise the old saying, "Monkey see, monkey do." According to new research, you could also say, "Elephant hear, elephant do." Read More
Unscrambling a Gem of a Mystery
Hidden inside every shiny green emerald is a geographical mystery. Once an emerald is plucked from a mine in its home country and turned into a piece of jewelry, it can be nearly impossible to figure out where the gem came from in the first place. Now, r Read More
Eels
True eels are fish of the order Anguilliformes, which consists of 4 suborders, 19 families, 110 genera and 400 species. Most eels are predators. Depending on their species, eels can reach from 10 cm to 3 m, and weigh up to 65 kg. Read More
It's a Small E-mail World After All
We're all connected. You can send an e-mail message to a friend, and your friend can pass it on to one of his or her friends, and that friend can do the same, continuing the chain. Eventually, your message could reach just about anyone in the world, and i Read More
What is a Verb?
The verb is perhaps the most important part of the sentence. A verb or compound verb asserts something about the subject of the sentence and express actions, events, or states of being. The verb or compound verb is the critical element of the predica Read More
Countable and Uncountable Nouns
In English grammar, words that refer to people, places, or things are called nouns. They can be classified in many ways. One way to classify nouns is according to whether they can be counted or not. Many English mistakes are related to this point. Read More
Supersight for a Dino King
The movie Jurassic Park has a scary scene in which a Tyrannosaurus rex growls right into the faces of two characters. One person tells the other not to worry because T. rex can't see things that don't move. Bad advice. A scientist now suggests that T. rex Read More
Slumber by the numbers
It’s an important question: “On an average school night, how many hours of sleep do you get?” More than 12,000 high school students were recently asked that during a survey by the Centers for Disease Control and Prevention. The overall answer: not enough Read More
Llamas
The Llama skull generally resembles that of Camelus, the relatively larger brain-cavity and orbits and less developed cranial ridges being due to its smaller size. The nasal bones are shorter and broader, and are joined by the premaxilla. Read More
Seen on the Science Fair Scene
Every spring, more than 1,000 high school students from around the world compete for millions of dollars in scholarships and other prizes at the Intel International Science and Engineering Fair (ISEF). But prizes aren't the competition's only draw. Scien Read More
The Mirror Universe of Antimatter
Had a fight with your parents or a bad day at school? Wouldn't it be nice to step through a mirror to enter a different, yet somehow familiar world on the other side? Read More
A Dire Shortage of Water
If it were up to me, the weather would be hot and sunny every day. Good thing it's not up to me. Earth needs rain and snow. Without a reliable supply of water, we would have nothing to drink, nothing to sustain our crops. Swimming pools would be empty. Read More
Marlin
The marlin is a large game fish. It has an elongated body up to 2.5 m long, a spearlike snout, and a long rigid dorsal fin which extends forwards to form a crest. Marlins are fast swimmers, occurring in all seas and hunting small and large fish. Read More
Felines
Felines a family of carnivorous mammals, varying widely in size, coloration, and behavior, although a few physical similarities apply. Feline bodies are normally long and slender, with muscles suited to running, leaping and climbing. Read More
Sting Ray
Dasyatids swim with a "flying" motion, propelled by motion of their large pectoral fins (commonly referred to as "wings"). Their stinger is a razor-sharp, barbed or serrated cartilaginous spine which grows from the ray's whip-like tail. Read More
Firefly Delight
Summer is a magical time. I love the vivid flowers, the brilliant sunsets, and, perhaps most amazing of all, the bright flashes of fireflies dancing in the night. In my fascination with fireflies, I'm not alone. Read More
A Newspaper's Hidden Cost
It's a morning ritual for millions of people: Wake up. Have breakfast. Read the paper. This simple, groggy habit is taking its toll on the environment, say researchers from the University of California, Berkeley. Read More
A brain-boosting video game
In the video game Tetris, players try to pack as many shapes as possible into a small space. According to a new study, that’s not all they’re doing: Scientists found a connection between playing Tetris and the size of part of the brain. Read More
A Recipe for Happiness
It feels good to be happy. Laughing is fun. And most people like to have a good time. "If you ask people what they want for their children, most say, 'I want them to be happy,'" says psychologist and happiness researcher Sonja Lyubomirsky of the Universi Read More
Mouse Songs
For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing. Rodents will probably never sing their way to Broadway, but researchers from Washington University in St. Louis have found evidence that Read More
Talking with Hands
Thumbs up. A friendly wave. A threatening fist. All these hand gestures are part of the body language that we use to communicate every day. Read More
Deers
A deer is a ruminant mammal belonging to the family Cervidae. Deer are widely distributed, and hunted, with representatives in all continents except Australia, Antarctica, and Africa. Their flesh, for which they are hunted, is called venison. Read More
Searching for Alien Life
On a clear night, go outside, lie on your back, and stare into the sky. As you gaze at the multitude of stars, you might wonder: Is there life on other planets out there? Read More
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A Very Distant Planet Says "Cheese"
Distant planets tend to be pretty camera-shy. Astronomers have found evidence of more than 125 planets around other stars in the universe, but no one has ever seen one directly. ... Read More
The man who rocked biology to its core
When the baby Charles Darwin arrived in the world, on February 12, 1809, modern science was also an infant. Chemists had begun talking about things called atoms. But nobody knew what atoms really were... Read More
Cassowaries
Cassowaries (genus Casuarius) are very large flightless birds native to the tropical forests of New Guinea and northeastern Australia. Some nearby islands also have small cassowary populations.... Read More
Monkeys Count
Monkey see, monkey hear, monkey count. Rhesus monkeys can match the number of faces they see to the number of voices they hear, a new study shows. This finding suggests that monkeys can keep track of... Read More
Shape Shifting
Using a cell phone, you can hear your friend when she calls. With a video camera or picture phone, you can also see her. ... Read More
Sweeeet! The Skinny on Sugar Substitutes
Cookies, soda, candy, chocolate: It can be hard to resist the temptation of sugary-sweet treats and drinks. But sugar is high in calories, and eating too much of it can cause weight gain and other he... Read More
Decoding a Beverage Jar
It's a good thing that people in one ancient Chinese town didn't always thoroughly rinse out their beverage jars. Now, the leftover liquid that soaked into the pottery more than 8,000 years ago is pro... Read More
Snails
The name snail applies to most members of the molluscan class Gastropoda that have coiled shells .These snails are of herbivorous nature. Snails move like earthworms by alternating body contractions ... Read More
Taking a Spill for Science
A cartoon character slips on a banana peel. On a TV show featuring home videos, people spin and tumble while trying to dance on a slippery floor. Your friend topples into a swimming pool while retriev... Read More
From Stem Cell to Any Cell
For maybe a day, about 9 months before you were born, you were just one cell. Then you were two identical cells. Then you were four. Then eight. ... Read More
Computers with Attitude
It's been a long day at school. You've got a heavy evening of homework ahead. You switch on your computer to work on an assignment. An animated kid on your computer screen smiles and says, "Hey, ... Read More
Fishy Sounds
Although coral reefs look peaceful, they're noisy places. Shrimp make popping noises that sound like bacon frying in a pan. Fish click their jaws or make rumbling sounds as they swim around. Such a l... Read More
Gliders in the Family
Watching monkeys at the zoo can be fascinating because the animals' actions are so similar to those of people. Along with gorillas, orangutans, lemurs, and others, monkeys belong to a group of mammals... Read More
To Catch a Dragonfly
Dragonflies date back at least 250 million years, says Daniel Soluk, an ecologist at the University of South Dakota in Vermillion. Alongside dinosaurs, they flitted across the prehistoric landscape on... Read More
Earth from the inside out
Scientists have long known this strange fact: It’s easier to look deep into space than into the center of Earth. Light can pass through most of space, so the light from distant stars can easily be see... Read More