How many faces do you show the world? Happy, sad, surprised, scared, mad, excited? Yes, all those and more. Facial expressions are the way our brains move the muscles in our faces to express the way we feel. We raise our eyebrows in surprise, we lower our eyelids in shyness, and we smile with happiness. That last facial expression is the one we most like to experience ourselves as well as to see in others.
We know what a happy smile looks like on the faces of our friends and families, but do our animals smile? And if they do, does the control of the facial muscles that create that smile come from some kind of emotion?
Predictions that global climate change will lead to more extreme weather patterns have not been lost on the arid, landlocked nation of Mongolia, and beginning this month, this sparsely populated country of 3.1 million is embarking on a unique experiment address the effects of a warming climate.
With its legendary harsh dry winters and short, hot summers, Mongolia is already a land of temperature extremes.
Some recycled goods or projects are just plain weird! While others are simply wonderful. As They say, one man’s trash is another man’s treasure.
All recycling is good, don’t get me wrong! Whatever we can do to promote keeping junk and garbage out of our overloaded landfills is worth it.
Rice University engineering researchers have unveiled a new method for rapidly converting simple glucose into biofuels and petrochemical substitutes. In a paper published online in Nature, Rice’s team described how it reversed one of the most efficient of all metabolic pathways — the beta oxidation cycle — to engineer bacteria that produce biofuel at a breakneck pace.
Antarctica’s glaciers are melting more rapidly than previously thought because of climate change, according to new information from US Geological Survey (USGS) through collaboration with the British Antarctic Survey (BAS).
One ice shelf, the Wordie Ice Shelf along the western coast of the Antarctic Peninsula, has completely disappeared. Another, the Larsen Ice Shelf extending along the east coast of the Antarctic Peninsula, has lost a chunk three times the size of Rhode Island.
Plastic bags made of corn are “popping” up in all kids of places: Restaurants, sporting events, and even concerts. Corn plastic is also being substituted for oil-based plastic in the production of everyday objects like cups, clothes, and containers.
Today, the stereotypical image of eastern Africa features immense stretches of grasslands, dotted by herds of huge herbivores, chewing their way across the plains. It seems like a timeless scene, the world’s last glimpse of what it was like when megafauna spanned the globe.
In actuality, these wide grasslands are an extremely recent feature in the region’s history. There isn’t solid evidence of animals consuming C4 plants until a scanty 10 million years ago (mya), and grasslands did not become widespread until the late Pliocene and Pleistocene. This recent birth of what is now a dominant feature of the landscape brings to mind many important questions. Specifically, after C4 plants started to become a food source in the Oligocene, how long did it take different herbivore species to adapt to eating this new type of greenery? Which species were early adopters, and which made the most complete shift from C3 to C4 plants? The process of adapting to a new resource–the relatively young C4 plants–had profound effects on community ecology of eastern Africa, as it provided new ways for large herd animals to both exploit new food sources and partition resources in order to facilitate coexistence and/or higher densities.