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Eggs came after chickens... and that's a fact!

METRO : It’s an age-old puzzle that’s stumped generations of scientists. But now they believe they have cracked the conundrum of what came first: the chicken or the egg. British researchers say the chicken must have come first as the formation of eggs is only possible thanks to a protein found in the chicken’s ovaries. ‘It had long been suspected that the egg came first but now we have the scientific proof that shows that in fact the chicken came first,’ said Dr Colin Freeman, from Sheffield University , who worked with counterparts at Warwick University. ‘The protein had been identified before and it was linked to egg formation but by examining it closely we have been able to see how it controls the process,’ he added. The protein – called ovocledidin-17 (OC-17) – acts as a catalyst to speed up the development of the shell. Scientists used a super computer called HECToR, based in Edinburgh , to ‘zoom in’ on the formation of an egg. It showed OC-17 was crucial in kick-start...

Amazing electron microscope photos

Almost all of the following images were captured using a scanning electronic microscope. Incredible details of 1 to 5nm (nanometer) in size can be detected 1. Red Blood Cells They look like little cinnamon candies here, but they're actually the most common type of blood cell in the human body - red blood cells (RBCs). These biconcave-shaped cells have the tall task of carrying oxygen to our entire body; in women there are about 4 to 5 million RBCs per micro liter (cubic millimeter) of blood and about 5 to 6 million in men. People who live at higher altitudes have even more RBCs because of the low oxygen levels in their environment. 2. Split End of Human Hair Regular trimmings to your hair and good conditioner should help to prevent this unsightly picture of a split end of a human hair. 3. Purkinje Neurons Of the 100 billion neurons in your brain. Purkinje (pronounced purr-kin-jee) neurons are some of the largest. Among other things, these cells are the masters of mot...