Seals are aquatic mammals, wild seals basically live in the ocean, the vast majority of seals are marine animals. Moreover, they are widely distributed in the sea area, extending from tropical and temperate zones to cold zones, where seals may be distributed, and different species of seals are distributed in different areas. In addition, seals can also be farmed, we see seals in aquariums are farmed, at this time can artificially regulate their surrounding environment, and can provide them with adequate food regularly. After training, the seals here are basically not aggressive and friendly to humans.
Many people want to keep seals as pets because they are very cute, but it is not so simple. It is not in conformity with the regulations to breed seals casually, and may even violate the law. In addition, it is difficult to breed seals, because they generally live in the ocean and have adapted to the marine environment.
As mentioned above, seals can be cultured artificially, but the cultured seals are basically in aquariums, and it is basically impossible to be used as pets. Most seals live in the ocean, and they have already adapted to the high salinity and pressure environment in the ocean, so they can not survive in fresh water. When breeding them, we should pay special attention to this problem, and we need to simulate the seawater environment to breed them. But there are some exceptions, there is a seal that lives in fresh water, called "Baikal seal", they live in Lake Baikal in Russia, can survive in fresh water.