Archive: 08/16/2007

Mother's little helpers

An Australian bird has been found to produce smaller, less nourishing eggs when it breeds in the presence of other ‘helper’ birds that provide child-care assistance. This unique adaptation enables the ...

Aug 16, 2007
5 / 5 (1) 0

MIT team aims to optimize chip designs

Computer chips inside high-speed communication devices have become so small that tiny variations which occur during chip fabrication can make a big difference in performance.

Aug 16, 2007
3.3 / 5 (12) 0

First genome transplant changes one species into another

For the first time, scientists have completely transformed a species of bacteria into another species by transplanting its complete set of DNA. The achievement marks a significant step toward the construction ...

Aug 16, 2007 feature
4.7 / 5 (121) 0

All change at the Earth's core

It is hard to know what is going on over 3000 km beneath our feet, but until recently scientists were fairly confident that they understood the way the iron atoms in the Earth’s core packed together. However, ...

Aug 16, 2007
4.5 / 5 (80) 0

New caledonian crows find 2 tools better than 1

Researchers have found that New Caledonian crows—which are known to make complex food-getting tools in the wild—can also spontaneously use one tool on another to get a snack. The researchers report their findings online ...

Aug 16, 2007
4.7 / 5 (18) 0