How Do Giant Pandas Survive on Bamboo Diets?
Photograph by Joe Petersburger, National Geographic How Do Giant Pandas Survive on Bamboo?Panda poop held clues to how bears break down plant fibers, study says. A new analysis of panda poop has finally answered an age-old question: How do giant pandas survive on a diet that's 99 percent bamboo when they have the guts of carnivores? Plant-eating animals tend to have longer intestines to aid in dig
Ancient Wasps Roosted in Rotting Dinosaur Eggs?
Wasps may have once roosted within rotting dinosaur eggs, an idea suggested by the discovery of exceptionally well-preserved fossils of insect cocoons. Scientists were recently investigating several roughly 70-million-year-old titanosaur eggs found in the Patagonia region of Argentina. Titanosaurs belonged to a group of gigantic plant-eaters that included the heaviest creatures to ever walk the Ea
Fourth of July Myths Debunked
Many time-honored patriotic tales turn out to be more fiction than fact. In anticipation of the Fourth of July, here's a look at some memorable myths from the birth of the United States. 1. The Declaration of Independence Was Signed on July 4 Independence Day is celebrated two days too late. The Second Continental Congress voted for a Declaration of Independence on July 2, prompting John Adams to
Densest Matter Created in Big-Bang Machine
A superhot substance recently made in the Large Hadron Collider (pictures) is the densest form of matter ever observed, scientists announced this week. Known as a quark-gluon plasma, the primordial state of matter may be what the entire universe was like in the immediate aftermath of the big bang. The exotic material is more than a hundred thousand times hotter than the inside of the sun and is de
Pluto Has Toxic Carbon Monoxide in Its Atmosphere
As if being distant and frigid weren't enough, Pluto is cloaked in a puffy atmosphere that contains highly toxic carbon monoxide, new data confirms. Observations of the dwarf planet made more than a decade ago offered inconclusive evidence of carbon monoxide in Pluto's atmosphere. The new study—based on data from the James Clerk Maxwell Telescope in Hawaii—not only confirms the gas is there, it sh
Oil-Eating Bacteria Engineered
Scientists are experimenting with "green" microbes in the lab that could someday be used to gobble up oil spills along coastlines without damaging the environment. © 2011 National Geographic; partially funded by NSF; field producing and videography by Fritz Faerber RELATED: Gulf Oil Spill News and Pictures Nature Fighting Back Against Gulf Oil Spill UNEDITED TRANSCRIPT: SKIMMING, CONTROLLED BURNS
Coldest Star Found—No Hotter Than Fresh Coffee
Warning: The news you are about to enjoy is extremely hot—relatively speaking. According to a new study, a star discovered 75 light-years away is no warmer than a freshly brewed cup of coffee. Dubbed CFBDSIR 1458 10b, the star is what's called a brown dwarf. These oddball objects are often called failed stars, because they have starlike heat and chemical properties but don't have enough mass for t
Why Human Penises Lost Their Spines
Why Human Penises Lost Their SpinesDNA study offers clues to "impenetrable mystery" of evolution, expert says. Men have lost the DNA code that once made human penises spiny, according to a new analysis of the human genome. Penile spines, which are still present in several modern animals, are usually small barbs of keratin—a type of hard tissue—that line the outside of the organ. The prehistoric ma
"Extinct" Salmon Discovered in Japanese Lake
"Extinct" Salmon Discovered in Japanese LakeFinding the fish was "was incredible, unbelievable," expert says. A Japanese salmon thought to have been extinct for 70 years has been discovered in a lake near Mount Fuji. The kunimasu salmon, also called the black kokanee, is a subspecies of sockeye salmon that's found only in Japan. Unlike true sockeye, which migrate between freshwater and the oceans,
Thunderstorms Shoot Antimatter Beams Into Space
Thunderstorms can shoot beams of antimatter into space—and the beams are so intense they can be spotted by spacecraft thousands of miles away, scientists have announced. Most so-called normal matter is made of subatomic particles such as electrons and protons. Antimatter, on the other hand, is made of particles that have the same masses and spins as their counterparts but with opposite charges and
Rock-Chewing Sea Urchins Have Self-Sharpening Teeth
Rock-Chewing Sea Urchins Have Self-Sharpening TeethFinding may lead to never-dull tools, study says. Sea urchins are perhaps best known for their armor of spines. But their mouths may be even more daunting—urchin teeth can literally chew through stone without getting dull. (Related: "Eyeless Urchins 'See' With Spines.") Now scientists are solving the mystery of how urchins keep their teeth so keen
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