Chinese Cretaceous fossil highlights avian evolution

A newly identified extinct bird species from a 127 million-year-old fossil deposit in northeastern China provides new information about avian development during the early evolution of flight.

Desert ants have an amazing odor memory

Scientists at the Max Planck Institute for Chemical Ecology used behavioral experiments to show that desert ants quickly learn many food odors and remember them for the rest of their lives. However, their memory for nest ...

Birds' voiceboxes are odd ducks

Birds sing from the heart. While other four-limbed animals like mammals and reptiles make sounds with voiceboxes in their throats, birds' chirps originate in a unique vocal organ called the syrinx, located in their chests. ...

Expanding CEO-to-worker pay gap bad for business

Companies whose CEOs earn hundreds of times their average employee's pay are viewed as less desirable to work for, and to do business with, according to a new University of California, Berkeley, study.

Why are data ethics so challenging in a changing world?

We now live largely in a data-driven world, and ethical oversight and constraints are needed to be sure that data ethics can reach an appropriate balance between the risks and benefits of data technology. The goal is to control ...

Study sheds light on—and through—2-D materials

The ability of metallic or semiconducting materials to absorb, reflect and act upon light is of primary importance to scientists developing optoelectronics—electronic devices that interact with light to perform tasks. Rice ...

How a molecular signal helps plant cells decide when to make oil

A study at the U.S. Department of Energy's Brookhaven National Laboratory identifies new details of how a sugar-signaling molecule helps regulate oil production in plant cells. As described in a paper appearing in the journal ...

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