The names of otters and sea otters are relatively close, and they also belong to Mammalia, Carnivora and Mustelidae. From the appearance point of view, they also have some similarities, and can move freely in the water. Therefore, many people confuse otters with sea otters and think that they belong to the same animal. In fact, although they have many similarities, they do not refer to a kind of organism. In fact, there are many differences between the two, and many aspects are different.
1. Differences between families and genera: Otters and sea otters are both mammals, carnivores and Mustelidae, but their genera are different. The otter is an otter, and the sea otter is a sea otter, so they are two different animals.
2. Appearance difference: In terms of appearance, otters and sea otters are also different. For example, the color of the face, when otters grow up, their face color is similar to the body color, are relatively dark; When sea otters grow up, their facial color is close to white, which is lighter. For example, their size, the body shape of otters will be slender, while sea otters will be fatter.
3. Difference in living habits: Both of them can move in the water, but the specific habits are different. Otters often come ashore, but sea otters stay in the water longer than otters.
4. Differences in swimming posture: Both otters and sea otters can move in the water, but the way they swim is different. Otters are normal when they swim, usually with their bodies down; Sea otters, on the other hand, swim on their backs.
5. Size difference: Otters and sea otters are also different in size. Otters are generally small in size, and fewer of them are more than 1 meter long. However, the body length of sea otters is generally between 1.3 and 1.5 meters, and their size is much larger.
