The lighter regions are the mountainous highlands, and the darker regions are vast “seas” of basalt lava that erupted out of the Moon’s core:
The craters Plato, Aristarchus, Kepler, Copernicus, Grimaldi, Ptolemaeus, and Tycho are easily visible with binoculars on a clear night.
Sheep are quadrupedal, ruminant mammals. An adult female sheep is referred to as a ewe. A male could be a ram or a wether. Cute young sheep are lambs.