Climate change is killing penguin chicks from the world’s largest colony of Magellanic penguins, not just indirectly – by depriving them of food, as has been repeatedly documented for these and other seabirds – but directly as a result of drenching rainstorms and, at other times, heat, according to new findings from the University of Washington.
Too big for parents to sit over protectively, but still too young to have grown waterproof feathers, downy penguin chicks exposed to drenching rain can struggle and die of hypothermia in spite of the best efforts of their concerned parents. And during extreme heat, chicks without waterproofing can’t take a dip in cooling waters as adults can. (more…)
AUSTIN, Texas — As the male túngara frog serenades female frogs from a pond, he creates watery ripples that make him easier to target by rivals and predators such as bats, according to researchers from The University of Texas at Austin, the Smithsonian Tropical Research Institute (STRI), Leiden University and Salisbury University.
A túngara frog will stop calling if it sees a bat overhead, but ripples continue moving for several seconds after the call ceases. In the study, published this week in the journal Science, researchers found evidence that bats use echolocation — a natural form of sonar — to detect these ripples and home in on a frog. The discovery sheds light on an ongoing evolutionary arms race between frogs and bats. (more…)
Builds a Massive Network of Local Cloud Hubs for Businesses Worldwide with 40 Data Centers Across Five Continents
ARMONK, N.Y. – 17 Jan 2014: IBM today announced plans to commit over $1.2 billion to significantly expand its global cloud footprint. This investment includes a network of cloud centers designed to bring clients greater flexibility, transparency and control over how they manage their data, run their business and deploy their IT operations locally in the cloud.
This year IBM plans to deliver cloud services from 40 data centers worldwide in 15 countries and five continents globally, including North America, South America, Europe, Asia and Australia. IBM will open 15 new centers worldwide adding to the existing global footprint of 13 global data centers from SoftLayer and 12 from IBM. Among the newest data centers to launch are China, Washington, D.C., Hong Kong, London, Japan, India, Canada, Mexico City and Dallas. With this announcement, IBM plans to have data centers in all major geographies and financial centers with plans to expand in the Middle East and Africa in 2015. (more…)
Why do the faces of some primates contain so many different colors — black, blue, red, orange and white — that are mixed in all kinds of combinations and often striking patterns while other primate faces are quite plain?
UCLA biologists reported last year on the evolution of 129 primate faces in species from Central and South America. This research team now reports on the faces of 139 Old World African and Asian primate species that have been diversifying over some 25 million years. (more…)
AMHERST, Mass. – Throughout Central and South America, there remains the palpable awareness of the decades-long “Dirty War,” in which the military and oligarchy joined forces in brutal and relentless repression of democratic institutions, and many tens of thousands people were simply marked for disappearance. That war has retained its own emotional and physical topography in the region, especially in Argentina, where as many as 30,000 citizens were killed after the generals seized power in 1976.
Now, Max Page, professor of architecture and history at the University of Massachusetts Amherst, has edited a new book that explores that topography and serves as an interpretive guide to the terror in Argentina, invoking the memory of the disappeared, the desaparecidos, in the memorials and hidden places of torture that mark the capital. (more…)
A mystery in the ocean near Antarctica has been solved by researchers who have long puzzled over how deep and mid-depth ocean waters are mixed.
They found that sea water mixes dramatically as it rushes over undersea mountains in Drake Passage – the channel between the southern tip of South America and the Antarctic continent. Mixing of water layers in the oceans is crucial in regulating the Earth’s climate and ocean currents.
The research provides insight for climate models which until now have lacked the detailed information on ocean mixing needed to provide accurate long-term climate projections. The study was carried out by the University of Exeter, the University of East Anglia, the University of Southampton, the Woods Hole Oceanographic Institution, the British Antarctic Survey and the Scottish Association for Marine Science and is published in the journal Nature. (more…)
Reservoirs of silica-rich magma – the kind that causes the most explosive volcanic eruptions – can persist in Earth’s upper crust for hundreds of thousands of years without triggering an eruption, according to new University of Washington modeling research.
That means an area known to have experienced a massive volcanic eruption in the past, such as Yellowstone National Park, could have a large pool of magma festering beneath it and still not be close to going off as it did 600,000 years ago.
“You might expect to see a stewing magma chamber for a long period of time and it doesn’t necessarily mean an eruption is imminent,” said Sarah Gelman, a UW doctoral student in Earth and space sciences. (more…)
Venom of the brown recluse spider causes a reaction in the body that is different from what researchers previously thought, a discovery that could lead to development of new treatments for spider bites.
University of Arizona researchers led a team that has discovered that venom of spiders in the genus Loxosceles, which contains about 100 spider species including the brown recluse, produces a different chemical product in the human body than scientists believed.
The finding has implications for understanding how these spider bites affect humans and for the development of possible treatments for the bites. (more…)
