Post ice-age extinctions of large mammals linked to humans, not climate change
Activation of brain region can change a monkey's choice
Artificially stimulating a brain region believed to play a key role in learning, reward and motivation induced monkeys to change which of two images they choose to look at. In experiments reported online ...
Scientists solve a 14,000-year-old ocean mystery
At the end of the last Ice Age, as the world began to warm, a swath of the North Pacific Ocean came to life. During a brief pulse of biological productivity 14,000 years ago, this stretch of the sea teemed ...
Dad's genome more ready at fertilization than mom's is—but hers catches up
Researchers from Huntsman Cancer Institute (HCI) at the University of Utah have discovered that while the genes provided by the father arrive at fertilization pre-programmed to the state needed by the embryo, the genes provided ...
Sweet success: Study finds way to catalyze more sugars from biomass
(Phys.org) —Catalysis may initiate almost all modern industrial manufacturing processes, but catalytic activity on solid surfaces is poorly understood. This is especially true for the cellulase enzymes ...
Implantable medical devices powered by the ear itself
Deep in the inner ear of mammals is a natural battery—a chamber filled with ions that produces an electrical potential to drive neural signals. In today's issue of the journal Nature Biotechnology, a team ...
How bees decide what to be: Researchers link reversible 'epigenetic' marks to behavior patterns
Johns Hopkins scientists report what is believed to be the first evidence that complex, reversible behavioral patterns in bees – and presumably other animals – are linked to reversible chemical tags on ...
Alan Turing's 1950s tiger stripe theory proved
Researchers from King's College London have provided the first experimental evidence confirming a great British mathematician's theory of how biological patterns such as tiger stripes or leopard spots are ...
Rocks on Mars may provide link to evidence of living organisms 4 billion years ago
A new article in press of the journal Earth and Planetary Science Letters unveils groundbreaking research on the hydrothermal formation of Clay-Carbonate rocks in the Nili Fossae region of Mars. The findin ...
Mimicking natural evolution with 'promiscuous reactions' to improve the diversity of drugs
A revolutionary new scientific method developed at the University of Leeds will improve the diversity of 'biologically active molecules', such as antibiotics and anti-cancer agents.
Study finds ocean bacteria follow predictable patterns of daily activity
We are all creatures of habit, and a new MIT study finds ocean bacteria are no exception.
Engineering light-controlled proteins
(Phys.org) —A University of Wyoming professor has engineered proteins that can be activated by near-infrared light as a way to control biological activities in deep tissues of small mammals.
Saving trees in tropics could cut emissions by one-fifth, study shows
Reducing deforestation in the tropics would significantly cut the amount of carbon dioxide emitted into the atmosphere – by as much as one-fifth – research shows.
New study shows humans have more impact on tropical nitrogen levels
A new paper co-written by four University of Montana researchers finds that humans have more than doubled tropical nitrogen inputs.