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Four seal species are estimated to have over one million members, while six are classified as endangered with population counts as low as 600, and two, the Caribbean monk seal and the Japanese sea lion, went extinct in the 20th century.
In the Bahamas, as many as 100 seals were slaughtered in one night. The species was considered to be already extinct by the mid-nineteenth century until a small colony was found near the Yucatán Peninsula in 1866. Seal killings continued, and the last reliable report of the animal alive was in 1952 at Serranilla Bank.
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 ...
When fur seals were hunted in the late 18th and early 19th centuries, they hauled out on remote islands where no predators were present. The hunters reported being able to club the unwary animals to death one after another, making the hunt profitable, though the price per seal skin was low. [5]
Together with the fur seals, they make up the family Otariidae, eared seals. The sea lions have six extant and one extinct species (the Japanese sea lion ) in five genera . Their range extends from the subarctic to tropical waters of the global ocean in both the Northern and Southern Hemispheres , with the notable exception of the northern ...
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.
The ribbon seal (Histriophoca fasciata) is a medium-sized pinniped from the true seal family (Phocidae). A seasonally ice-bound species, it is found in the Arctic and Subarctic regions of the North Pacific Ocean , notably in the Bering Sea and Sea of Okhotsk .
The Baikal seal has been blamed for drops in omul numbers, but this is not the case. It is estimated that omul only comprises about 0.1% of its diet. [4] The omul's main competitor is the golomyanka and by eating tons of these fish a year, Baikal seals cut down on the omul's competition for resources. [5] Baikal seals have one unusual foraging ...