Harbor seals Phoca vitulina are found in coastal waters of the northern Atlantic and Pacific Oceans. Adults can attain a length of 6.1 feet and weigh 290 lbs. Females usually bear a single pup which they take care of alone. Pups are capable of swimming within hours of birth and they develop quickly on their Mother's high fat content milk. Their population is not threatened as a whole but some local populations have been severely reduced through disease and conflict with humans.
