Adults typically grow to 1.1–1.4 m (3 ft 7 in–4 ft 7 in) in length with a body mass from 63 to 70 kg (139 to 154 lb). Adults typically grow to 1.1–1.4 m (3 ft 7 in–4 ft 7 in) in length with a body mass from 63 to 70 kg (139 to 154 lb). The final piece of the puzzle of the Baikal seal’s unique prey choice, and why it hasn’t been threatened by human-caused environmental changes lies in where it lives: Lake Baikal produces very little algae but is abundant in amphipods. I. Characteristics and Taxonomy. Baikal seal lives only in Lake Baikal, Russia. Admittedly, the lake is enormous. The seal's throat is whitish, and it features black spots which give the animal its name. Description The Baikal seal is one of the smallest true seals. 3. Baikal seals were derived from a ringed-seal-like … Apart from Baikal and the Caspian Sea; nerpa inhabit the seas of cold and temperate belts of all oceans except the Indian. Description [edit]. Lake Baikal is in a rift valley, created by the Baikal Rift Zone, where the Earth's crust is slowly pulling apart. The genus of the nerpa also includes the Caspian seal and northern ring seal. But the Baikal seal size hits the sweet spot where there is a substantial energy profit. The seal's molars are fashioned like those of the crabeater seal in that they can lock together to sieve krill from the water. The Baikal nerpa - Phoca sibirica - is a representative of the order of pinnipeds and family of real (earless) seal. Bearded Seal The leopard seal's size falls between 7.9 to 11.5 feet and 440 to 1,310 lbs for its weight. Baikal seals, as indicated by their name, are endemic to Lake Baikal in Siberia, which means they are found nowhere else in the world. Seals range in size from the 1 m (3 ft 3 in) and 45 kg (99 lb) Baikal seal to the 5 m (16 ft) and 3,200 kg (7,100 lb) southern elephant seal male, which is also the largest member of the order Carnivora. Certain layers of this species provide both pleasure and insulation. The maximum reported size is 1.65 m (5 ft 5 in) in length and 130 kg (290 lb) in weight. Baikal seals (Pusa sibirica) and Caspian seals (P. caspica) have common features such as small size, delicate skull, and affinity for ice.Based on mtDNA haplotypes, Caspian seals were derived from the common ancient type of Pusa 60 million years ago and were subsequently isolated in the Caspian Sea. At 636 km (395 mi) long and 79 km (49 mi) wide, Lake Baikal has the largest surface area of any freshwater lake in Asia, at 31,722 km 2 (12,248 sq mi), and is the deepest lake in the world at 1,642 m (5,387 ft). This animal appears dark silver-gray on the upper parts and yellow-gray on the lower sides. Habitat. The final piece of the puzzle of the Baikal seal's unique prey choice, and why it hasn't been threatened by human-caused environmental changes lies in where it lives: Lake Baikal produces very little algae but is abundant in amphipods. The Baikal seal's torpedo-shaped flexible body makes it an elegant swimmer. Seals range greatly in size, from the gargantuan southern elephant seal, which can weigh more than a pickup truck, to the relatively slender, 100-pound Baikal seal. Lake Baikal, Russian Ozero Baykal, also spelled Ozero Bajkal, lake located in the southern part of eastern Siberia within the republic of Buryatia and Irkutsk oblast (province) of Russia.It is the oldest existing freshwater lake on Earth (20 million–25 million years old), as well as the deepest continental body of water, having a maximum depth of 5,315 feet (1,620 metres). 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