The sea otter is a very cute looking mammal. Some of their body structures are very special, for example, they have pockets, which are very convenient for sea otters to carry some necessary tools. The most common thing in this bag is some small stones, when sea otters find sea urchins want to eat, they will encounter the phenomenon that it is not easy to break open the sea urchins, at this time they will take the stones out of the bag, and then put the sea urchin on their stomach, with stones to break open the sea urchin, and then eat them. After using the stones, the otter does not throw them away, but puts them back in his pocket.
Sometimes, sea otters find more sea urchins, but if they can't eat them all for a while, they will hide some of them in their pockets and take them out to eat when they are hungry. In addition, this bag can also be called "baby bag", sometimes they will put their cubs in this bag, and carry them around.
As mentioned above, sea otters have pockets, and pockets are more important for them, which can make it more convenient for them to eat, and they will also be used when raising children. Sea otters' pockets are not easy to see, however, because they grow right under their armpits, and they have pockets under the armpits of both forelimbs. Therefore, it is easier to observe them only when they raise their claws.
