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Those who live longer have fewer children

A long life and lots of children—that was quite a common aspiration until not so long ago. But the world of animals reveals that high fertility and longevity are often mutually exclusive: Particularly animals with shorter ...

Sex, lice and videotape

A few years ago, Scott Villa of Emory University had a problem. Then a graduate student at the University of Utah, he was stumped with an issue never addressed in school: How does one film lice having sex?

Switchgrass hybrid yields insights into plant evolution

Switchgrass is attractive as a potential bioenergy crop because it can grow for years without having to be replanted. Requiring less fertilizer than typical annual crops like corn, switchgrass can keep more nitrogen, phosphorus ...

When social interaction helps you choose your food

How do we choose our food? By studying the neurobiological mechanisms involved in food choices of rodents, neuroscientists at the University of Geneva (UNIGE), Switzerland, have identified the important and lasting influence ...

Is sex primarily a strategy against transmissible cancer?

One of the greatest enigmas of evolutionary biology is that while sex is the dominant mode of reproduction among multicellular organisms, asexual reproduction appears much more efficient and less costly. However, in a study ...

New research shakes up the sloth family tree

New studies by two research teams published today in the journals Nature Ecology and Evolution and Current Biology challenge decades of accepted scientific opinion concerning the evolutionary relationships of tree sloths ...

What organizes the genome in the nucleus?

Spatial separation of active from inactive fractions of the genome in the cell nucleus is crucial for gene expression control. A new study uncovers leading mechanisms of such separation and turns our picture of the nucleus ...

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Engineering
Tiny probe that senses deep in the lung set to shed light on disease
Ecology
The complex fate of Antarctic species in the face of a changing climate
Space Exploration
What happened to the Apollo goodwill moon rocks?
Environment
Getting to zero: the Japan town trying to recycle all its waste
Space Exploration
'Moon Rock Hunter' on quest to track down Apollo gifts
Space Exploration
Womankind's giant leap: who will be the first female moonwalker?
Space Exploration
Cassini reveals new sculpting in Saturn rings
Ecology
A shady spot may protect species against rapid climate warming
Superconductivity
Electron (or 'hole') pairs may survive effort to kill superconductivity
General Physics
Discovery of light-induced ferroelectricity in strontium titanate
Other
Lawyers suggest better labeling on prophetic patent applications
Bio & Medicine
Raising fluid walls around living cells
Space Exploration
To the Moon and back: 50 years on, a giant leap into the unknown
Materials Science
Revealing 'hidden' phases of matter through the power of light
Condensed Matter
Phase-change materials from smartphones may lead to higher data storage, energy efficiency
Ecology
What drives Yellowstone's massive elk migrations?
Earth Sciences
No direct link between north Atlantic currents, sea level along New England coast
Quantum Physics
New quantum dot microscope shows electric potentials of individual atoms
Astronomy
Hubble sets sights on an explosive galaxy
Optics & Photonics
Laser trick produces high-energy terahertz pulses