Spotted Seal

Fascinating facts about the Spotted Seal

• Spotted seals sit right between harbor and ribbon seals in size. Mature adults of both sexes generally weigh between 82-109 kg (180-240 lb) and measure 150-210 cm (59-83 in). Female adults can range from 65 to 115 kg and grow 151-169 cm, while males typically weigh 85-110 kg and reach 161-176 cm.
• Three distinct groups of spotted seals together hold roughly 203,600 individuals, but they are far from evenly spread. The Bering Sea segment includes about 100,000 seals across the western Bering Sea, the Gulf of Anadyr, and Alaska's eastern Bering Sea. A second segment of about 100,000 seals breeds around the Sea of Japan and the Sea of Okhotsk. The southernmost group is tiny, around 3,300 seals in Liaodong Bay, China and Peter the Great Bay, Russia, plus a marginal 300 seals off Baekryeong Island, South Korea. This patchwork shows how regional ice loss could hit some groups far harder than others.
• Spotted seals are annually monogamous, giving birth after a ten-month pregnancy to a pup. Average birth size is 100 cm (39 in) and 12 kg (26 lb). The newborn stays with its mother for six weeks before weaning, and both parents reach sexual maturity around age four. With a maximum lifespan of 35 years, only a few survive past 25.
• Global warming has nudged spotted seals to threatened status in just over a decade. On 15 October 2009 NOAA concluded that the Alaskan-adjacent populations, totaling about 200,000 seals, were not endangered. Yet by 2026 the agency listed the distinct southern population as threatened, reflecting rapid ice loss and shrinking habitat. This shift underscores how quickly climate impacts can move a species from safe to at-risk.
• Satellite tracking of the Yellow Sea population revealed that individuals migrate more than 3,300 km (2,100 mi) between breeding ice and summer foraging grounds.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Spotted Seal

In the icy waters of the North Pacific, the spotted seal glides with effortless elegance, its sleek fur glistening like polished onyx as it navigates the frozen tundra with a serene and gentle nature. With each stroke of its flippers, it propels itself through the waves with a hypnotic rhythm, its large brown eyes watchful and alert as it surveys its Arctic domain. As it hauls itself onto the ice, its spotted coat blends seamlessly into the dappled landscape, a masterful display of camouflage that belies the seal's remarkable adaptability and resilience.

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