Shift in caribou movements may be tied to human activity — ScienceDaily

Human activities might have shifted the movement of caribou in and near the Arctic National Wildlife Refuge, according to scientists with the University of Cincinnati. Each year caribou take on one of nature’s longest land migrations, trekking hundreds of miles across Alaska and Canada to find food and give birth in their preferred calving grounds. […]

Shift in caribou movements may be tied to human activity

University of Cincinnati assistant professor Joshua Miller records data from a shed caribou antler in the Arctic National Wildlife Refuge. Credit: Eric Wald Human activities might have shifted the movement of caribou in and near the Arctic National Wildlife Refuge, according to scientists with the University of Cincinnati. Each year caribou take on one of […]

Changing diets — not less physical activity — may best explain childhood obesity crisis

IMAGE: Traditional Shuar lunch items view more  Credit: Samuel Urlacher Variation in consumption of market-acquired foods outside of the traditional diet — but not in total calories burned daily — is reliably related to indigenous Amazonian children’s body fat, according to a Baylor University study that offers insight into the global obesity epidemic. “The importance of […]

4-stranded DNA’s activity in living cells unraveled for 1st time

Two thin strands wound together in a spiraling helix: This is the iconic shape of a DNA molecule. But sometimes, DNA can form a rare quadruple-helix, and this odd structure may play a role in diseases like cancer.  Not much is known about these four-stranded DNA, known as G-quadruplexes — but now, scientists have developed […]

Human Activity Makes India’s Coastlines More Vulnerable

Sindhuja Kasthala was studying land use and land cover in the coastal regions of India when she noticed an alarming trend. “I found that although we have coastal rules, the land use kept changing very fast,” said Kasthala. “I thought, instead of just studying the existing vulnerability types, I would come up with […]

Feedback Loops of Fire Activity and Climate Change in Canada

Wildfires burned more than 7,750 square kilometers of Alberta’s forests last year. New research indicates the conflagrations are part of a pattern showing increased average burned areas every year since 1970, and climate change is poised to accelerate this trend. Ellen Whitman, a forest fire research scientist from Natural Resources Canada, used historical […]

Satellite tag tracks activity levels of highly migratory species across the vast ocean

Cobia (Rachycentron canadum) equipped with ATS enabled PSAT during captive validation trials. Credit: Matt Bernanke–Sharktagging.com Scientists at the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science and Wildlife Computers, Inc. today announced the release of a new activity data product application for marine animal tracking. The technology is designed to remotely track and transmit […]

Increased Plate Tectonic Activity May Have Warmed the Miocene Climate

One of the enigmas of past climate is the event known as the Miocene Climatic Optimum (MCO), a period of global warming from about 17 million to 15 million years ago. The MCO was the most significant interruption of a long-term planetary cooling trend that has stretched from around 40 million years ago […]