<human>:  Eastern rattlesnakes have 6 segments in their tails, while Western rattlesnakes have 8 segments. What is the percentage difference in their tail size, expressed as a percentage of the Western rattlesnake's tail size?
<bot>: How many segments are in the Western rattlesnake's tail? ** First find the difference in size between the two kinds of snake tail: 8 segments - 6 segments = <<8-6=2>>2 segments
How many segments are in the Western rattlesnak's tail? ** Then divide that amount by the size of the Western rattlesnake's tail and multiply by 100% to express the answer as a percentage: 2 segments / 8 segments * 100% = 25%
#### 25