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Burns and Nakagawa et al. reported that the skull of the harbor seal was more massive and robust than that of the spotted seal, a finding that was also supported by the present study. A total of eight identification landmarks (15, 28, 34, 35, 56, 70, 72, 73) were narrowed down while maintaining the same discrimination ratio (100%) among the.

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Description. The harbor seal is a relatively small member of the Phocidae family. The head is large, the body short, and the front limbs relatively small. Like other phocids, the ears are indicated by small openings in the skin; there are no pinnae (cartilaginous projecting portions of an external ear). The seal's large hind flippers cannot be.

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Harbor seal pelvic bones are fused, preventing them from moving their hind flippers under their pelvis to walk on land like sea lions. Instead, they move by undulating in a caterpillar-like motion. This behavior does not mean they are injured. Harbor seal pups can swim at birth. They can also dive for up to 2 minutes when they are only 2 to 3.

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Harbor Seal Skull Replica is museum quality polyurethane resin cast. Made in USA. 2-part skull (separate cranium and jaw). Our precise skull can be used as a teaching tool, museum skull exhibit, home decor skull, or office decor skull. The Harbor Seal, Harbour seal or Phoca vitulina is also known as the Common seal, is a true seal found along.

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During the study, 150 museum harbor seal skull specimens from seals from 1920-2017 have been obtained and the 15N/14N of their collagen has been measured. Scientists now have estimates of harbor seal food web position from the Hood Canal and Puget Sound during that time period, which they are currently comparing to data sets describing.

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The harbor (or harbour) seal (Phoca vitulina), also known as the common seal,. Skull of a harbor seal Skeleton of a harbor seal in the Seal Museum in Iceland. Individual harbor seals possess a unique pattern of spots, either dark on a light background or light on a dark. They vary in colour from brownish black to tan or grey; underparts are.

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Using this knowledge, researchers are conducting isotope analysis of amino acids in harbor seal skulls to determine the composition of historical marine food webs. Their results were published on March 22 in Global Change Biology. Megan Feddern, the study's lead author and a graduate student at the University of Washington School of Aquatic.

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Previous studies by our group on the harbor seal skull material from this collection addressed the spectrum and prevalence of dental anomalies and lesions and of osteoarthritic changes of the temporomandibular joint . Age determination on the seals had been performed by Abt , based on cement-layer-analysis in canines or gross morphological.

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In a darkened storage room filled with specimens from the Smithsonian Museum of Natural History, ecologist Megan Feddern picked up the skull of a harbor seal that had met its death 92 years ago in northern Puget Sound. Holding the skull in her left hand and a high-speed rotary drill in her right, Feddern directed the screaming tool into the.

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position of the harbor seal that collagen came from. PROGRESS 150 museum harbor seal skull specimens from seals from 1920-2017 have been obtained and the 15N/14N of their collagen has been measured. We now have estimates of harbor seal food web position from the Hood Canal and Puget Sound during that time period. (Figure 1) −125 −124 −123.

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Harbor seal skull (Phoca vitulina) Adult phocids vary from 1.17 m (3.8 ft) in length and 45 kg (99 lb) in weight in the ringed seal to 5.8 m (19 ft) and 4,000 kg (8,800 lb) in the southern elephant seal, which is the largest member of the order Carnivora.

Harbor Seal Skull Replica

A positive association between ambient contaminant levels and 1) the prevalence of pathological skull changes and 2) the degree of fluctuating asymmetry in the skulls was indicated for harbor.

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Harbor Seal Skull. Common Seal. Phocidae Phoca vitulina. * Size: 7.9 inch (20cm) * Museum quality replica is cast in durable polyurethane resins. * Made in USA. Shop more Museum Quality Skull Replicas in Seal Skulls Store.

Harbor Seal Skull Replica

This 3D, rotating reconstruction of a Harbor Seal (Phoca vitulina) was produced by the WHOI CSI Facility using computerized tomography (CT) scans along both.

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Harbor Seal Skull Replica. Museum quality Bone Clone® reproduction of Phoca vitulina. The most wide-ranging of all pinnipeds, the harbor seal can reach six feet in length, weigh up to 365 pounds and live up to 35 years. Diet consists mainly of fish, and for this reason they sometimes become ensnared in fishermen's nets where they may perish..