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Downsized Dinosaurs - Downsized Dinosaurs
Downsized Dinosaurs
Scientists have discovered a new species of dinosaur that grew to a length of about 20 feet and weighed a ton or so. Sounds big, right? In fact, these dinos were pretty puny in the grand scheme of things. Read More
Unnatural Disasters
On Aug. 29, Hurricane Katrina slammed into the southeastern United States and dumped more than a foot of rain in some places. Gusts of wind topped 140 miles per hour, and the ocean rose as high as 20 feet above its normal level. Floods followed, leaving N Read More
Mosquito duets
A mosquito’s whining buzz can be as irritating as its bite. But to a mosquito of the opposite sex, the high-pitched hum is the sound of romance. Skeeters create their distinctive sound by beating their wings at a certain rate, or a certain number of beat Read More
Feeding School for Meerkats
Your teachers help you to learn math, spelling, and lots of other things. When you're done with all that, you might want to study your teachers, too. Scientists are interested in what makes teachers teach, and they're looking for clues throughout the Read More
Life under Ice
Deep below a thick slab of floating ice off Antarctica, an astounding community of creatures has surprised scientists who had expected to find nothing there. In December 2003, researchers drilled a hole through the Amery ice shelf in Antarctica. They pic Read More
A Moon's Icy Spray
At Yellowstone National Park in Wyoming, geysers such as the famous Old Faithful regularly spout water hundreds of feet into the air. The jets are impressive, but they're nothing compared to geysers on one of Saturn's moons. Read More
Storks
Storks are large, long-legged, long-necked wading birds with long stout bills, belonging to the family Ciconiidae. They occur in most of the warmer regions of the world and tend to live in drier habitats than the related herons, spoonbills and ibises Read More
Big Squid
Fishermen in Florida recently discovered the remains of a humongous squid unlike any creature ever seen in the Atlantic Ocean. The creature's Jell-O-like body wasn't completely intact, but the living creature was definitely longer than the combined height Read More
Electric Catfish
Electric catfish (family Malapteruridae) is the common name of several species of freshwater catfish with the ability to produce an electric shock of up to 350 volts using electroplaques of an electric organ. Read More
Oldest Writing in the New World
You don't normally expect anything exciting to happen while building a road. But, several years ago, road builders in southern Mexico found a large stone slab covered with marks. Read More
Echidnas
Echidnas, sometimes also referred to as "spiny anteaters", are the only surviving monotremes apart from the Platypus. The four surviving species, native to New Guinea and Australia, all belong to the Tachyglossidae family. Read More
Marmots
Marmots are members of the genus Marmota, in the rodent family Sciuridae (squirrels). Marmots are generally large ground squirrels. Those most often referred to as marmots tend to live in mountainous areas such as the Sierra Nevadas in the U.S. Read More
Tossing Out a Black Hole Life Preserver
It's a good thing we can't get anywhere near a black hole. If it were possible, the consequences would not be pretty. A black hole is a point in space where gravity is so intense that not even light can escape its tremendous grip. Read More
Sheep
The domestic sheep (Ovis aries), the most common species of the sheep genus (Ovis), is a woolly ruminant quadruped which probably descends from the wild mouflon of south-central and south-west Asia. In sheep husbandry, a group is called a flob. Read More
A Really Big (but Extinct) Rodent
Guinea pigs make popular pets nowadays. Eight million years ago, however, it would have been hard to find a cage large enough to hold one. Back then, a South American rodent called Phoberomys pattersoni grew to be as big as a bison, say researchers who r Read More
Vampire Bats
Vampire bats are bats that feed on blood (hematophagy). There are only three bat species that feed on blood: The Common Vampire bat (Desmodus rotundus), the Hairy-legged Vampire bat (Diphylla ecaudata), and the White-winged Vampire bat. Read More
Ancient Heights
You probably know where all the hills are in your neighborhood. Even so, the planet hasn't always had the same lumps. In some places, Earth was even lumpier that it is now. In other places, it was smoother. Over millions of years, entire mountain ranges h Read More
Pronouns
Pronouns are words that take the place of nouns. Imagine telling a story about Peter. Your essay may be full of sentences beginning with Peter. In every sentence there will be a Peter. For this purpose, pronouns come very handy. Read More
Flu river
What if the solution to one problem causes other problems down the road? That may be the case in the ongoing struggle to fight the flu. Flu season is almost here, which means more and more people may be taking Tamiflu in the months ahead. 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
Popping to Perfection
You're at the movies. The feature's starting. You've got a soda in one hand and a bucket of popcorn in the other. Just as the opening scene begins to suck you in, you crunch down on a mouthful of popcorn, and . . . ouch! You've bitten into a hard, unpoppe Read More
New twists for phantom limbs
Phantom” pain is like a ghost in the body — but it’s anything but imaginary. People who have had an arm or leg amputated can often still feel sensations of the missing limb, even though it’s no longer there. These sensations can be painful, and scientists 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 retrieving a beach ball. Read More
Lost Sight, Found Sound
In some children who go blind, certain parts of the brain that normally control vision appear to switch jobs and focus instead on sound, a new study has found. Read More
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Flying Foxes
Bats of the genus Pteropus, belonging to the Megachiroptera sub-order, are the largest bats in the world. They are commonly known as the Fruit bat, Flying fox or Malayan Flyingfox among other numerous... Read More
Cows
Cattle (called cows in vernacular and contemporary usage) are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. They are raised as livestock for meat (called beef and ve... Read More
Three strikes wiped out woolly mammoths
People have been fascinated by woolly mammoths for a long time. Before people even knew how to grow crops or make things from metal, they were decorating their walls with pictures of mammoths. Scienti... Read More
Out in the Cold
Penguins live on land, on ice, and in the oceans of the southern hemisphere, but global climate warming is shrinking their habitats. Oil slicks and other types of pollution are making them sick.... Read More
Diving, Rolling, and Floating, Alligator Style
Try to wrestle an alligator underwater, and you'll probably lose. It's not just that the average gator—at 11 feet long and close to 1,000 pounds—is a whole lot bigger than you are. It turns out alliga... Read More
Giving Sharks Safe Homes
Being surrounded by sharks may sound like a bad thing, but scientists say sharks are actually a good sign of ocean health. Even knowing that, Enric Sala, a marine ecologist and National Geographic Fel... Read More
Backyard Birds
Birdwatching doesn't always mean hiking to exotic locations or wandering deep into the forest in search of feathered friends. Adaptable to almost any environment, many species of birds have made our h... Read More
Monkeys in the Mirror
Some days, when you view yourself in the mirror, you might look really good. Other days, you might not be so happy with what you see. Either way, you know who you're looking at: You. Capuchin monkeys... Read More
Blooming Jellies
Forget snowball fights. Imagine throwing globs of jellyfish at your friends. In some Middle Eastern countries kids have been known to toss jellyfish bits at each other when the gooey creatures wash up... Read More
Hawks
True hawks are any of the species in the genera Accipiter, Micronisus, Melierax, Urotriorchis, and Megatriorchis. The widespread Accipiter genus includes goshawks, sparrowhawks, the Sharp-shinned Hawk... Read More
A Star's Belt of Dust and Rocks
Between Mars and Jupiter, a band of rocks and dust orbits our sun. Astronomers call it the asteroid belt, and they think that it contains scraps of rock left over from a time when the planets formed n... Read More
Skates and Rays
You may be familiar with the classic look of a fish (fins, scales, goes glub-glub?) but there are just as many shapes and designs of these underwater creatures as there are those above the ground. ... Read More
Watering the Air
The average temperature around the world is rising. People living in the U.S. Midwest might find this fact hard to believe, though. Two new studies show that in America’s heartland, summers are now co... Read More
Antelope By Antelope
Antelopes are a group of herbivorous African and Asian animals of the family Bovidae, distinguished by a pair of hollow horns on their heads. There are many different species of antelope which range f... Read More
Invisibility Ring
Scientists can't yet make an invisibility cloak like the one that Harry Potter uses. But, for the first time, they've constructed a simple cloaking device that makes itself and something placed inside... Read More