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.
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Dog vision: How dogs see the world. by Jon Bastian Elsewhere, weâve dealt with the myth that dogs age seven years for every human year, but thereâs another popular misconception floating around. This is the belief that dogs only see in black and white. While their color vision is somewhat limited and different than ours, they do see color, and a look at the world through a dogâs eyes can provide insight into how they perceive the world. Humans see the world in color because we (usually) have three types of color receptor cells, or cones, in our eyes.