Bright colors in nature a sure sign of toxicity—or is it? Brightly colored prey generally signify danger in the form of toxins for the predator. Predators instinctively know that a brightly colored prey is a sign of bad news and not a suitable meal. Researchers at Michigan State University however are exploring how this evolved and in the process found some animals have actually only imitated the trait in an effort to survive event though they are not poisonous.
Many small glaciers make up the whole in Greenland Research using NASA data is giving new insight into one of the processes causing Greenland's ice sheet to lose mass. A team of scientists used satellite observations and ice thickness measurements gathered by NASA's Operation IceBridge to calculate the rate at which ice flows through Greenland's glaciers into the ocean. The findings of this research give a clearer picture of how glacier flow affects the Greenland Ice Sheet and shows that this dynamic process is dominated by a small number of glaciers.
Stonehenge, acoustically speaking Why did the builders of Stonehenge choose to transport giant bluestones hundreds of kilometers from Wales to Salisbury Plain? Dr. George Nash from Bristol's Department of Archaeology and Anthropology is involved in research, which is taking a novel approach to solving the mystery.
COLLEGIATE CORNER: Trash talk: Ocean Dumping Remember the excitement that filled your body when your parents told you the family was going to go to the beach? Remember the excitement slowly leaving your body when you witnessed the trash that covered the beach for miles? Ocean dumping has become a major problem for marine life and the people who enjoy its many benefits. Many marine animals have suffered from the trash in the water and people have suffered from the sight of trash filling the ocean and cluttering the beaches ruining their supposed beautiful day. Industries, cities, and militaries have been dumping their waste into the ocean for years now. One solution to prevent this problem is to impose stricter restrictions on ocean dumping that range from pedestrian waste to toxic nuclear hazard.
Warming up all over, even in the Arctic It's long been established that Arctic Ocean sea ice is on the retreat, writes Tim Radford. But it's the pace of change that's surprising scientists: latest studies show that the ice-free period is increasing by 5 days / decade. Ice in the Arctic continues to retreat. The season without ice is getting longer by an average of five days every 10 years.