This maybe sounds very sad, but most baby otters only grow up with they're mom's (they're is something more upsetting about it but can be trigger people, i cried/srs). But a happy fact is how the mom otter teach they're babys to swim! They first start grooming they're babys, then they start like floating near the baby on the water were they start talking they're small water steps until they can swim aside each other. After the process of learning how to swim, they're no longer consider babys but more little otters learning more each day