View Fat Harbor Seal Pup Images. Sexual maturity occurs at between 3 and 7 years. To guard against very cold water temperatures, harbor seals maintain a thick layer of fat beneath their skin, giving them a thick sausage shape.
The harbor seal's sensitive whiskers detect changes in water flow and alert the animal to the presence of prey and predators.
This is a seal i have seen since 1991. Harp seal milk contains up to 50% fat, so pups gain over 2 kilograms per day when nursing, which lasts roughly 12 days. Harbor seal pups are born along the west coast, typically from february to may in california and from late spring to summer jeff boehm, executive director of the marine mammal center in northern california, said so far this year 18 marine mammals have. Harbor seals haul out of the water periodically to rest, give birth, and nurse their pups.
