the stars get progressively more difficult to see as their magnitude rises, so if you would like to test your visual acuity, locate the constellation of Ursa Minor, which contains the north starPolaris, and see how many of the stars you can see that are identified in the image at the top...
Zoologists disagree over how the domestic dog should be classified. Some believe that the domestic dog is a subspecies ofgrey wolf, in which case its scientific name would beCanis lupus familiaris. Others believe that the domestic dog has moved sufficiently far away from its wolf ancestors to b...