Articles By Roxanne Palmer

Greenland Ice Melt

Greenland Ice Melt Just Part Of Larger Warming Trend, Experts Say

This year, Greenland's vast ice sheet is melting earlier and over a wider range than usual. That's just one sign that this year is shaping up to be a real scorcher.

Scientists Unravel Southern Ocean Carbon Capture and Storage Mechanism

Pacific Ocean Vitamin B Deficiency Threatens Food Chain: Study

A lack of B vitamins could hamper the growth of essential microorganisms, scientists say.

russell viper

How One Snake's Venom Turns Your Blood To Jell-O And Reverses Puberty

Russell's viper is the scourge of Southeast Asia, responsible for more bites in that region than any other kind of snake. A somewhat unsettling video illustrates how the viper's venom solidifies the blood of its victims.

Diabetes

Fossil Poop Yields Clues To Modern Native American Diabetes Rates

American Indians have a much higher risk for diabetes than Caucasians -- and a new study suggests their ancestors' diet may be one of the reasons they're more susceptible to the disease.

Polar Bear Origin

Polar Bear Gene Study Finds Earlier Origin, Tracks Traces Of Climate Change

Previous studies have pegged polar bear origin at around 600,000 years ago, but they've actually existed as a distinct species as early as 5 million years ago, according to a new paper.

sally ride

Sally Ride, First US Woman In Space, Dies At 61

American astronaut Sally Ride passed away "peacefully" after a long battle with pancreatic cancer, according to a statement from the company she founded.

Sheep Study

Sheep Flock Together In 'Selfish Herd,' Scientists Say

Flocking together for self-protection isn't an altruistic move for sheep -- they're just playing the odds, researchers say.

natterer bat

Bats Eavesdrop On Fly Sex To Grab Easier Meal: Study

Flies that were normally invisible to bats had a higher risk of death thanks to noisy, predator-attracting lovemaking.

Andraka

Young Science Prodigies Buck Graying Trend In Breakthroughs

During the past few decades, scientific breakthroughs have increasingly come from older scientists. But younger people still make astounding discoveries, and some institutions, including science fairs and the U.S. government, aim to encourage budding researchers to keep at it.

Nerve Cells

Nerve Cells Grown In Lab Link Up Best When Arranged In Triangles: Study

Nerve cell networks in the lab are still being refined, but could eventually be an efficient way to test drugs and better understand our brains.