In the examples below, notice that transportation and park ticket prices stay the same even when the number of days changes. If you're staying somewhere that's relatively inexpensive and not eating out all the time, you can often extend a trip from 4 to 7 days for very little money.
Some seeing eye dogs are selected from breeders specifically because they possess a certain temperament that is required of service dogs. However, many seeing eye dogs are rescued from animal shelters. All dogs who enter the training program to become seeing eye dogs must past a series of rigorous personality tests. If the dog passes the tests, they are then taken to a training facility.
A dog's eye color is determined by the amount of melanin found in the iris. Brown eyes indicate a high concentration of melanin, while green or blue eyes indicate a lower amount. Dogs with two different colored eyes have differing melanin levels in each eye. Heterochromia, however, can also be centralized. That is, the iris of one eye can be two different colors.