There are about 900 breeds of sheep in the world.
The figure 8 exercise requires the team to heel in a figure 8 pattern either on or off leash. Generally two of the ring stewards will assist the judge with this exercise by acting as "posts", standing 8 feet apart, that the team walks around to form the loops of the figure 8.
A specialty show may be regional or national. A "Best in Show" win at a national specialty show is tremendously prestigious, indicating that the winning dog or bitch triumphed at a contest which attracted entries from the most serious fanciers of that breed in the country or continent. Some specialty shows attract international entries.