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Unlike a sea lion, a seal cannot rotate its hind flippers underneath the pelvic girdle. When on land, a seal moves by bouncing in a caterpillar like motion. Head. A harbor seal has a rounded head with a fairly blunt snout. A harbor seal lacks external ear flaps. Its ear openings close when it dives. Harbor seals have 34 to 36 teeth.
Harbor seals are very graceful swimmers, but because their hind flippers don’t rotate, they’re very clumsy on land. Tucked in between the hind flippers is a short tail. Harbor seals are covered in short, thick hair.
Harbor seals are brown, silvery white, tan, or gray, with distinctive V-shaped nostrils. An adult can attain a length of 1.85 m (6.1 ft) and a mass of up to 168 kg (370 lb). Blubber under the seal's skin helps to maintain body temperature. Females outlive males (30–35 years versus 20–25 years).
Harbor seals, also known as common seals are marine mammals found across the Northern Hemisphere. Although mostly safe, some populations are threatened by various factors like disease, sealing, etc. Size: Males measure at around 63-75 inches (160-190 cm) and females 63-67 inches (160-170 cm).
- Mammalia
- Chordata
- Carnivora
East Atlantic harbour seals show very little sexual dimorphism, although adult males may be slightly larger and have a slightly broader head than females. A sample of adult male P. v. vitulina in Ireland (caught for tagging) weighed between 73 and 103 kg, while females (some of whom may have been in late pregnancy) weighed 73-94kg (B. McConnell ...
Like all true seals or commonseals, they have no external ear flaps and small flippers with a short tail. Unable to rotate their rear flippers, they are awkward on land and move bouncing along on their bellies.
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Eyes are round and widely set on the front of the head. The hind flippers provide locomotion through the water and hide the short flat tail causing it to be almost invisible. Harbor seals have a hairy coat consisting of stiff, heavy guard hairs, with a layer of finer, denser, hair underneath.
