Which came first, the chicken or the egg?

Since there could be neither a chicken nor an egg without each already existing in a fully functional state, they both had to have been put in place at the same time. But there are many interdependent parts in the chicken system, and new research has uncovered one of the tiniest--yet most vital--of them.

Some Tibetans live at altitudes of 14,000 feet. Other than a few genetic differences, they are similar to Han Chinese, who live much closer to sea level. It is believed that ancient Han peoples migrated to Tibet and were able to adapt to the very thin air at this high altitude. But what kind of adaptation was necessary for this, and how did it occur?

The human genome has become a leading area of biological investigation. Its massive amounts of data have been digitized, which allows the information to be more easily studied. Much of genomic function remains a mystery, so new discoveries are common--and often quite surprising to the researchers making them.

Moths can see very well, even at night, and their eyes have a special built-in anti-glare feature so that reflected light does not alert predators to their presence. Engineers are interested in copying these anti-glare design principles, which could revolutionize whole industries with glare-free displays.

Whales are graceful and remarkable swimming mammals. The 84 living species are amazingly diverse, ranging from over 100 feet long down to the size of an average dog. Recent research attempted to discover an evolutionary reason for this great diversity in body sizes, but the surprising findings actually support the creation model of whale development.