Earth

As dairy farmers across Europe anxiously await the lifting of EU milk quotas in April this year, new research from the University of Bristol, UK has revealed the antiquity of dairy farming in a region famous for its dairy exports: Ireland.

Research published today in the Journal of Environmental Archaeology shows that dairying on the island goes back approximately 6,000 years, revealed through traces of ancient dairy fats found in pots dating to around 4,000 to 2,500 BC.

A new study of dolphins and seals shows that despite their remarkable adaptations to aquatic life, exercising while holding their breath remains a physiological challenge for marine mammals. The study, published January 15 in Nature Communications, found a surprisingly high frequency of heart arrhythmias in bottlenose dolphins and Weddell seals during the deepest dives.

Two teams of astronomers have used computer models to look back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars - extremely luminous objects powered by supermassive black holes with the mass of a billion suns - regulate the formation of stars and the build-up of the most massive galaxies.

A new review of studies has found that viruses carried by commercial bees can jump to wild pollinator populations with potentially devastating effects and the researchers behind the work are calling for new measures to make sure commercial pollinators are not introduced into natural environments.

An international team of researchers says climate change, the loss of biosphere integrity, land-system change, and altered biogeochemical cycles like phosphorus and nitrogen runoff have all passed beyond levels that put humanity in a "safe operating space."

A National Institutes of Health white paper that was released today finds little to no evidence for the effectiveness of opioid drugs in the treatment of long-term chronic pain, despite the explosive recent growth in the use of the drugs.

The paper, which constitutes the final report of a seven-member panel convened by the NIH last September, finds that many of the studies used to justify the prescription of these drugs were either poorly conducted or of an insufficient duration.

Human activity, predominantly the global economic system, is now the prime driver of change in the Earth System (the sum of our planet's interacting physical, chemical, biological and human processes), according to a set of 24 global indicators, or "planetary dashboard".

The research charts the "Great Acceleration" in human activity from the start of the industrial revolution in 1750 to 2010, and the subsequent changes in the Earth System - greenhouse gas levels, ocean acidification, deforestation and biodiversity deterioration.

Adult sea turtles find their way back to the beaches where they hatched by seeking out unique magnetic signatures along the coast, according to new evidence.

Scientists have described a unique monoclonal antibody with the potential to treat Staphylococcus aureus (S. aureus) infections through the simultaneous neutralization of multiple key toxins produced by S. aureus, including alpha-hemolysin and four additional leukocidins. The findings are published online this week in the journal mAbs and demonstrate superior in vitro potency compared to antibodies targeting alpha-hemolysin alone. The mAb also shows high protective efficacy from lethal S. aureus infections in several animal models.

Manila's wide-ranging black market in exotic animals does a criminal trade in animals, ranging from pet stores "with many endangered and illegal species hidden behind the scenes" to major international wildlife violators and wholesale smuggling rackets.

It also led to discovering a new species of lizard.

Tibet, the highest region on Earth and one of the most remote, is associated with vivid blue skies and the crystal clear air of the Himalayas. During the long cold season, however, the traditional nomadic people spend much of their time in snug dwellings where they cook and stay warm by burning yak dung. Their indoor air can be filled with dangerous levels of fine particulate matter, including black carbon, a new study finds.

Up to 8 percent of people from India, Pakistan, Bangladesh and other South Asian countries carry a mutated gene that causes heart failure and potentially fatal heart attacks.

A new study demonstrates how this gene mutation impairs the heart's ability to pump blood. Results could point the way to eventual treatments and prevention strategies for an estimated 55 million people of South Asian descent worldwide, including 200,000 people in the United States, who carry the potentially fatal mutation.

Scientists have finally managed to extract DNA from Australia's extinct giant kangaroos - the mysterious marsupial megafauna that roamed Australia over 40,000 years ago.

A team of scientists led by Dr Bastien Llamas and Professor Alan Cooper from the University of Adelaide's Australian Centre for Ancient DNA (ACAD) have extracted DNA sequences from two species: a giant short-faced kangaroo (Simosthenurus occidentalis) and a giant wallaby (Protemnodon anak). These specimens died around 45,000 years ago and their remains were discovered in a cold and dry cave in Tasmania.

The emerald ash borer (Agrilus planipennis), also known as EAB, is an invasive insect pest from Asia that has killed millions of trees in the United States and Canada and has caused billions of dollars of damage since it was discovered in 2002. Fortunately, its damage has been limited to ash trees -- or so we thought.

Two miles below the surface of the ocean, researchers have discovered new microbes that "breathe" sulfate.

The microbes, which have yet to be classified and named, exist in massive undersea aquifers -- networks of channels in porous rock beneath the ocean where water continually churns. About one-third of the Earth's biomass is thought to exist in this largely uncharted environment.