Catherine Griffin : Science World Report

Jan 15, 2014 12:20 AM EST

Ancient Hunter-Gatherers Suffered Tooth Decay from Starchy Foods

It turns out that our ancient ancestors probably needed a dentist. Scientists have discovered that a diet rich in starchy foods may have led to high rates of tooth decay in ancient hunter-gatherers.

Jan 14, 2014 02:55 PM EST

Giant Subglacial Trench Deeper Than the Grand Canyon Discovered in Antarctica

What lies beneath the Antarctic Ice has long remained a mystery. Now, scientists have uncovered a massive, ancient subglacial trough that's deeper than the Grand Canyon. The discovery reveals a little bit more about the region and its distinct and unusual features.

Jan 14, 2014 01:30 PM EST

New Research on Sauropod Gigantism: How Dinosaurs Became so Large

Sauropods were the largest animals in Earth's history, roaming the Earth millions of years ago and weighing up to 80 tons. Now, scientists have summarized sauropod gigantism in a publicly available collection.

Jan 14, 2014 09:09 AM EST

NASA Hubble Telescope Captures Spectacular Image of M83 Spiral Galaxy

Astronomers have used the Hubble Space Telescope to produce a spectacular, new mosaic image of the Southern pinwheel, a spiral galaxy that lies 15 million light-years away. The new picture reveals vibrant magentas and blues that show that the galaxy is ablaze with star formation.

Jan 14, 2014 08:38 AM EST

Unprecedented High Levels of Molecular Chlorine Discovered in the Arctic Atmosphere

The Arctic is usually seen as one of the last "pristine" locations on Earth. Now, scientists have found that that's far from the case. They've discovered unprecedented levels of molecular chlorine in the air above the Arctic, revealing a bit more about the changing climate.

Jan 14, 2014 07:30 AM EST

Climate Engineering isn't Popular with the Public: Climate Change

Climate change is a huge issue and scientists are constantly trying to think of new ways to solve it. Yet some methods are more popular than others. Now, researchers have found out that the public isn't a big fan of climate engineering, the deliberate large-scale manipulation to counteract climate c...

Jan 14, 2014 06:47 AM EST

Threatened Biodiversity in Australia Seeks Safe Havens from Climate Change

The climate is changing rapidly, which means that species also need to change and adapt. Now, scientists have taken a closer look at potential refugia in declining rainfall environments, which could show where species may migrate in order to escape harsh conditions.

Jan 14, 2014 06:05 AM EST

New Ancient Fossils Reveal Link in Hind Limb Evolution

Scientists may have just uncovered new evidence of hind limb evolution. They've found well-preserved pelves and a partial pelvic fin from a 375 million-year-old transitional species between fish and legged animals, revealing a bit more about how fish began to walk on land.

Jan 14, 2014 05:41 AM EST

Thoreau's Walden Pond Trees Leafing Out 18 Days Earlier

Scientists have found further evidence of climate change in the works of Henry David Thoreau. They've discovered that the leaf-out times of trees and shrubs at Walden Pond are an average of 18 days earlier than they were in the 1850s, a time when Thoreau first recorded his observations.

Jan 13, 2014 01:43 PM EST

Scientists Discover Method to Stimulate Plant Growth for Better Crop Yields

Scientists may have found a way to stimulate plant growth and lead to better crop yields. They've discovered a natural mechanism that could lend aid to plants even when they're under stress.

Jan 13, 2014 12:28 PM EST

Growing Global Tourism Steals Seashells from Beaches

Global tourism continues to grow by leaps and pounds. In fact, it's increased fourfold over just the past 30 years. Now, scientists have found that this tourism has resulted in human-induced seashell loss that may harm natural habitats worldwide.

Jan 13, 2014 11:58 AM EST

Fear of Being Skinny Places Teen Boys at Risk for Depression

Which is worse for teen boys--thinking they're too skinny or too heavy? Researchers have taken a closer look and have found that teens who think that they're too skinny when they are actually a healthy weight are at greater risk of being depressed as teens and as adults when compared to other boys.