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.

After a year of image capturing, many years of planning, and a billion dollars of research spending, the European Space Agency's Planck satellite telescope has produced the first ever image of the entire sky. The Planck "all-sky survey"¹ was taken between August 2009 and June 2010 and captured the microwave radiation of the full sky.

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?

People don't generally picture ducks as having lived alongside dinosaurs. After all, it is widely assumed that birds evolved from dinosaurs over a period of millions of years. But fossils discovered two decades ago reveal clear evidence that they lived at the same time.

Canadian scientists have found a massive dinosaur fossil graveyard in Alberta containing so many bones that it calls into question the standard stories of slow and gradual dinosaur fossil formation. No mere river flood could account for so many casualties. So, the researchers proposed that the cause was something much more violent.