Northern fur seal

Grown-up guys are stocky in form, and have amplified (thick and wide) necks. A mane of coarse, longer gatekeeper hairs stretches out from the lower neck to the shoulders.[5] and covers the scruff, neck, chest, and upper back. While the skulls of grown-up guys are huge and vigorous for their general size, their heads show up short on account of the mix of a short gag, and the backs of the head behind the ear pinnae being clouded by the amplified necks. Grown-up guys have unexpected temples framed by the rise of the crown from advancement of the sagittal peaks, and thicker hide of the mane on the highest point of their heads.[7]  The northern hide seal is an eared seal found along the north Pacific Ocean, the Bering Sea, and the Sea of Okhotsk. It is the biggest individual from the hide seal subfamily ) and the lone living species in the family A solitary fossil animal groups, is known from the Pliocene of Japan and western North America.Northern hide seals have outrageous sexual dimorphism, with guys being 30–40% longer and a larger number of than 4.5 occasions heavier than grown-up females.[1] The head is foreshortened in both genders due to the exceptionally short, down-bended gag, and little nose, which expands marginally past the mouth in females and tolerably in guys. The pelage is thick and rich, with a thick underfur in a smooth tone. The underfur is clouded by the more drawn out watch hairs, despite the fact that it is to some degree apparent when the creatures are wet. Provisions of both front and rear flippers are remarkable and demonstrative of the species. Hide is missing on the highest point of the front flippers and a sudden "clean line" is seen across the wrist where the hide ends.[5] The rear flippers are proportionately the longest in any otariid in light of amazingly long, cartilaginous expansions on the entirety of the toes.[5] Small hooks are on digits 2–4, well back from the fold like finish of every digit. The ear pinnae are long and obvious, and stripped of dull hide at the tips in more seasoned creatures. The mystacial vibrissae can be extremely long, and routinely stretch out past the ears. Grown-ups have all white vibrissae, adolescents and subadults have a combination of white and dark vibrissae, including some that have dim bases and white finishes, and puppies and yearlings have all dark vibrissae. The eyes are proportionately enormous and prominent, particularly on females, subadults, and juveniles.[6] 

Canine teeth are any longer and have a more noteworthy width in grown-up guys than those found on grown-up females, and this relationship holds less significantly at all ages. 

Hide seal little guys, including one uncommon pale skinned person 

Grown-up females, subadults, and adolescents are moderate in form. Recognizing the genders is troublesome until about age five. The body is unobtrusive in size and the neck, chest, and shoulders are estimated in extent with the middle. Grown-up females and subadults have more mind boggling and variable tinge than grown-up guys. They are dim silver-dim to charcoal above. The flanks, chest, sides, and underside of the neck, regularly framing a chevron design around here, are cream to tan with corroded tones. Variable cream to rust-hued regions are on the sides and top of the gag, jaw, and as a "brush stroke" running in reverse under the eye. Interestingly, grown-up guys are medium dim to dark, or ruddy to dim earthy colored everywhere. Their manes can have variable measures of silver-dim or yellowish coloring on the watchman hairs. Little guys are blackish upon entering the world, with variable oval spaces of buff on the sides, in the axillary region, and on the jaw and sides of the gag. Following three to four months, puppies shed to the shade of grown-up females and subadults. 

Guys can be just about as extensive as 2.1 m and 270 kg. Females can be up to 1.5 m and gauge 50 kg or more. Babies weigh 5.4–6 kg, and are 60–65 cm long. 

The skull 

The teeth are haplodont, for example sharp, funnel shaped and for the most part single-established, as is normal with savage marine warm blooded creatures adjusted to tearing fish tissue. As with most caniforms, the upper canines are noticeable. The dental recipe of the grown-up is 

3.1.4.2 

2.1.4.1 

[8] 

close up of face and ears 

Like other otariids, northern hide seals are worked for productive earthly motion. Their rear appendages are in a plantigrade position and can turn under the body for quadrupedal motion and support.[9] When swimming, there are two distinct kinds of development: movement and plunging. These seals swim principally with forelimb drive because of their physiology. They have adaptable joints between vertebrae for better mobility in the water just as "more prominent solid influence" for pectoral strokes.[10] Stroke designs are distinctive for various plunge types and motion, and stroke rates change for people since there's a connection between greatest stroke rate and body size.