Description: The bot fly is not your average housefly. The various species can be described as myiatic flies, meaning they invade living tissue or organs of humans and animals when they are still in their larvae stage. In their adult form, species like the Horse Stomach bot fly Gasterophilus intestinalis resemble honey bees and are …
In the past two million years, North America has experienced the coming and going of ice ages. During the ice ages, the Chihuahuan Desert existed only in our modern-day Mexico, in the southernmost part of its current range. Then, about 11,000 years ago, the last ice age ended. Ice was piled a mile high over …
Allen Levine — of the Minnesota VA Medical Center and University of Minnesota — wonders why people like sugar so much. He wonders how sugar affects our brains. Dr. Levine is trying to answer these questions by studying rats. He changes their diets and also injects them with chemicals that regulate eating. Allen Levine: It’s …
The first Europeans to set foot in Big Bend were probably Cabeza de Vaca —an explorer from Spain—and his companions. In 1535, de Vaca landed on the upper Gulf coast of Texas, far from his intended destination, Mexico City. Only three or four of his original crew survived. But humans lived and died in Big …
“I’ve read that the shape of DNA is a ‘double helix.’ What is that?” If you could see a piece of DNA, it would look like a ladder that’s been twisted into a corkscrew shape . . . that’s the double helix. The rungs of the ladder are made up of pairs of chemicals — …
If you hike from the desert floor near Panther Junction up to the Chisos Mountains, you’ll notice that the plants change quickly as the elevation increases. Big Bend elevations range from about 2,000 feet along the Rio Grande to over 7,000 feet in the Chisos Mountains. Generally, the higher up you go, the less hot …
Big Bend is rich in fossils. Probably the most famous and awesome is that representing a winged creature called a Pterosaur. This extinct dinosaur weighed about 150 pounds and had a 36-foot wing span. In other words, the distance from one wing tip to another was about the same as the height of a four-story …
STILLWATER — As a homeowner, you want a neat, landscaped yard. But you also may want a dog for security purposes and for loyal companionship for you and your family. Can you succeed at having both? Yes, but some considerations in planning for both the dog and the landscape will keep both objectives more compatible, …
Your Dog And Backyard Landscaping: Tips For Achieving Compatibility Continue »
FACTS Group: Silicates Crystal system: Monoclinic or Orthorhombic Chemical formula: Cu2H2Si2O5(OH)4 Hardness: 2 -4 Density: 2 – 2.4 Cleavage: None Fracture: Conchoidal Colour: Blue to Green Streak: White to Green Lustre: Vitreous to waxy Fluorescence: None Quartz makes up more than 12% of the earths crust. In addition to being one of the most abundant minerals …
About Quartz Crystal ~ Powerful Benefits and 27 Configurations Continue »