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A harbor seal has a short, flattened tail - tucked between its hind flippers. Hair. Harbor seals have thick, short hair. The coat is made of coarse guard hairs and finer, but denser underhairs. Each guard hair has three to six underhair fibers attached to the root. The density of a harbor seal's hair increases with age.
Apr 19, 2022 · Harbor seals molt (shed hair) in the mid to late summer for 1-2 months, spending more time out of the water. ... Last updated by NOAA Fisheries on 04/19/2022 ...
- Mammalia
- Chordata
- Carnivora
The harbor (or harbour) seal ... or a change in the hair follicles. ... had enormous tumors in their livers by the 1980s and the harbor seal was long gone, shot to ...
Killer whales (orcas), white sharks and polar bears prey on harbor seals. Coyotes sometimes hunt common seals when they are on land. Conservation Status. IUCN has listed the harbor seal under their ‘Least Concern’ category. Their total population is estimated to be around 350,000-500,000 individuals.
- Mammalia
- Chordata
- Carnivora
We expected a higher hair density at harbour seal vibrissal pads than on the trunk. We analysed hair density and distribution as well as hair and skin structure on the back, on top of the head and on the mystacial, supraorbital and rhinal vibrissal pads of four harbour seals using light and electron microscopy. Figure 2.
- Nicola Erdsack, Guido Dehnhardt, Martin Witt, Andreas Wree, Ursula Siebert, Wolf Hanke
- 2015
Harbor seals can dive as deep as 427 m (1,400 ft) and stay underwater for almost 30 minutes. However, the average dive is a few minutes long and 91 m (298 ft) deep. Harbor seals perform dives in a range of shapes. One recent study classified their dives into variations of U-shaped and V-shaped dives.
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All harbor seals are spotted with great variations in color. Males weigh as much as 300 pounds. Females are slightly smaller. Harbor seals mature between 4-7 years of age and live 30-40 years. Harbor seals feed on fish, squid, clams, and some shellfish. Harbor seals can dive below 1,200 feet and can stay submerged as long as 30-40 minutes.