The world's largest rodent pet: The water dolphin
When it comes to rodents, most people keep hamsters, bamboo rats and chinchillas. So, do you know what the world's largest rodent pet is? The world's largest rodent pet is the water dolphin, which is a semi-aquatic animal that mainly eats grass. The water dolphin looks like a pig, but its face resembles a mouse, and it is also very good in water.