<human>: What is the difference between a hamster and a guinea pig?
<bot>: The main difference between a hamster and a guinea pig is size. Hamsters are typically smaller than guinea pigs, with adult males measuring around 2 inches in length and females being slightly larger. They also have longer bodies and shorter legs compared to guinea pigs. In terms of diet, hamsters are more omnivores while guinea pigs tend to be herbivores. Lastly, hamsters have thicker fur that helps them regulate their body temperature, while guinea pigs have thinner coats that help them absorb heat from the sun.