A medical student looked at his own sperm under a microscope and filmed the fascinating ... tasked only to fertilise an egg. They are competitive in their mission, but in the end, only around ...

The researchers also examined a fine slice of eggshell under the microscope and analyzed the evolutionary relationships among oviraptorosaurs to determine where the new embryo fell on the family tree.

On this week's Under the Microscope, water quality in Missouri does not meet federal ... The case was over a state law that mandates the size of cages for egg-laying hens. Mike McGraw reports. If a ...