This is individual KB of the Sonso chimpanzee community of the Budongo Forest in Uganda, using a moss-sponge in November 2011, a behavior she learned by observing her mother.

Geneticists solve 40-year-old dilemma to explain why duplicate genes remain in the genome

This is an informational graphic of the process of gene duplication, showing how sister genes can confer mutational robustness by allowing organisms to adapt to novel environments.Geneticists at Trinity College Dublin have made a major breakthrough with important implications for understanding the evolution of genomes in a variety of organisms.

NASA's Swift mission observes mega flares from a mini star

DG CVn, a binary consisting of two red dwarf stars shown here in an artist's rendering, unleashed a series of powerful flares seen by NASA's Swift. At its peak, the initial flare was brighter in X-rays than the combined light from both stars at all wavelengths under typical conditions.On April 23, NASA's Swift satellite detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star. The initial blast from this record-setting...

NASA support key to glacier mapping efforts

A 3-D map of bedrock beneath Jakobshavn Glacier was generated with ice-penetrating radar data.Thanks in part to support from NASA and the National Science Foundation, scientists have produced the first-ever detailed maps of bedrock beneath glaciers in Greenland and Antarctica. This new data...

Climate detectives reveal handprint of human caused climate change in Australia

The impacts of man-made climate change were felt in Australia during its hottest year on record in 2013.Australia's hottest year on record in 2013 along with the accompanying droughts, heat waves and record-breaking seasons of that year was virtually impossible without the influence of human-caused global warming.

Dolphins are attracted to magnets

One of six bottlenose dolphins studied by Kremers et al. in the delphinarium. Those dolphins behaved differently when swimming near magnetized objects.Add dolphins to the list of magnetosensitive animals, French researchers say. Dolphins are indeed sensitive to magnetic stimuli, as they behave differently when swimming near magnetized objects. So says Dorothee...

Smithsonian scientists discover coral's best defender against an army of sea stars

Coral reefs face a suite of perilous threats in today's ocean. From overfishing and pollution to coastal development and climate change, fragile coral ecosystems are disappearing at unprecedented rates around...

Blades of grass inspire advance in organic solar cells

Vertical nanopillars are ideal geometries for getting around the challenges of producing polymer architecture to boost power-conversion efficiency of light to electricity to power electronic devices.Using a bio-mimicking analog of one of nature's most efficient light-harvesting structures, blades of grass, an international research team led by Alejandro Briseno of the University of Massachusetts Amherst has...

A heartbeat away? Hybrid 'patch' could replace transplants

Because heart cells cannot multiply and cardiac muscles contain few stem cells, heart tissue is unable to repair itself after a heart attack. Now Tel Aviv University researchers are literally...

Shape up quickly -- applies to fish, too!

This is Erik Sandblom with a couple of shorthorn sculpins caught off Disko Island in Greenland.Fish can live in almost any aquatic environment on Earth, but when the climate changes and temperatures go up many species are pushed to the limit. The amount of time...

Cancer therapy: Driving cancer cells to suicide

Researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich report that a new class of chemical compounds makes cancer cells more sensitive to chemotherapeutic drugs. They have also pinpointed the relevant target enzyme,...

Laser-guided sea monkeys show how zooplankton migrations may affect global ocean currents

A time lapse of migrating sea monkeys (white) and particles suspended in the water (yellow) reveals large, swirling currents created by the swimming animals that mix the surrounding water.Sea monkeys have captured the popular attention of both children and aquarium hobbyists because of their easily observable life cycle -- sold as dehydrated eggs, these tiny brine shrimp readily...

Semen secrets: How a previous sexual partner can influence another male's offspring

Neriid flies are depicted. Scientists at UNSW Australia have studied the flies and discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner.Scientists have discovered a new form of non-genetic inheritance, showing for the first time that offspring can resemble a mother's previous sexual partner -- in flies at least.

How dinosaur arms turned into bird wings

Although we now appreciate that birds evolved from a branch of the dinosaur family tree, a crucial adaptation for flight has continued to puzzle evolutionary biologists. During the millions of...

Bacteria may have ability to reduce impact of diazepam on UK river environments

The natural photo degradation of diazepam (valium) and similar medicines -- followed by bacterial breakdown -- may reduce their potentially harmful impact on the UK's freshwater environment, a team of...

Taking thin films to the extreme

These are gold-coated notebook paper pieces with ultra-thin germanium films of different thickness deposited on top.Applying a well-known optical phenomenon called thin-film interference, a group of researchers at Harvard University has demonstrated the ability to "paint" ultra-thin coatings onto a rough surface -- work that...

Selectively rewiring the brain's circuitry to treat depression

On Star Trek, it is easy to take for granted the incredible ability of futuristic doctors to wave small devices over the heads of both humans and aliens, diagnose their...

'Deadly diarrhea' rates nearly doubled in 10 years: Study

Infections with the intestinal superbug C. difficile nearly doubled from 2001 to 2010 in U.S. hospitals without noticeable improvement in patient mortality rates or hospital lengths of stay, according to...

Gene doubling shapes the world: Instant speciation, biodiversity, and the root of our existence

What do seedless watermelon, salmon, and strawberries all have in common? Unlike most eukaryotic multicellular organisms that have two sets of chromosomes and are diploid, these organisms are all polyploid,...

Alcohol makes smiles more 'contagious,' but only for men

Consuming an alcoholic beverage may make men more responsive to the smiles of others in their social group, according to new research in Clinical Psychological Science, a journal of the...

Entanglement made tangible

Quantum entanglement refers to the "pairing" of two subatomic particles in such a way that they form a whole quantum system. Interest in entanglement is increasing today, as it challenges...

Gender equality leads to more Olympic medals for men and women

Gender equality boosts a country's Olympic medal count for both women and men, shows a new study from the University of British Columbia.

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