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The harbor (or harbour) seal (Phoca vitulina), also known as the common seal, is a true seal found along temperate and Arctic marine coastlines of the Northern Hemisphere. The most widely distributed species of pinniped (walruses, eared seals, and true seals), they are found in coastal waters of the northern Atlantic and Pacific oceans, Baltic ...
Seals typically swallow their food whole, and will rip apart prey that is too big. [97] [98] The leopard seal, a prolific predator of penguins, is known to violently shake its prey to death. [99] Complex serrations in the teeth of filter-feeding species, such as crabeater seals, allow water to leak out as they swallow their planktonic food. [85]
Seals may also migrate to other environmental changes, such as El Niño, and traveling seals may use various features of their environment to reach their destination including geomagnetic fields, water and wind currents, the position of the sun and moon and the taste and temperature of the water.
The skull of the leopard seal. The leopard seal has a distinctively long and muscular body shape when compared to other seals. The overall length of adults is 2.4–3.5 m (7.9–11.5 ft) and their weight is in the range 200 to 600 kilograms (440 to 1,320 lb), making them the same length as the northern walrus but usually less than half the weight.
Cal Poly researchers tag 10 seal pups to examine migration habits Elephant seals are migratory, with the adults swimming north along the coastline as far as Alaska and out into the northern Pacific.
At present, Baikal seals show lower levels of contaminants than seals of Europe and North America, but higher than those in the Arctic. [1] The most serious future threat to the survival of the seal may be global warming, which has the potential to seriously affect a closed cold-water ecosystem such as that of Lake Baikal. [1]
Harbor seals (common seals) are also known to enter estuaries and freshwater rivers in pursuit of their prey. [8] In addition a unique subspecies in Quebec and an isolated population of harbor seals in Alaska are known to inhabit freshwater lakes for the duration of the year. They are also known to frequently migrate to the Western Arctic.
The video was captured near Puerto Ayora, a tropical beach town that also happens to be a mere 10 minute walk from the Charles Darwin Research Center.