Sei whales occur in subtropical, temperate, and subpolar waters around the world. Balaenoptera borealis. They prefer subtropical to subpolar waters and can be found in all oceans and adjoining seas, except for those in tropical and polar regions. 45 to 66 feet. About 20 tons. The development of explosive harpoons and steam-powered whaling ships in the late nineteenth century brought previously unobtainable large whales within reach of commercial whalers. Length. Scientific Name. The scientific name of Balaenoptera borealis has the meaning “winged whale” and “northern.” After the Blue whale and Fin whale, the Sei is the 3rd largest animal living on the planet. Being a baleen whale, the Sei has two blowholes and no teeth, which are replaced with as many as 400 baleen plates full of bristles that filter out prey from the water. Once stocks of more profitable right whales, blue whales, fin whales, and humpback whales became depleted, sei whales were hunted in earnest, particularly from 1950 t… Scientific Name: Balaenoptera borealis Length: 45-66 feet Weight: About 20 tons Reaching speeds up to 34.5 miles per hour makes the Sei Whale the fast whale in the water. Initially their speed and elusiveness, and later the comparatively small yield of oil and meat partially protected them.

The sei whale is one of the fastest whales, reaching speeds of up to 30 miles per hour. Often found with pollock in Norway, the name “sei” (pronounced ‘say’) comes from the Norwegian word for pollock, “seje.” The words in the scientific name Balaenoptera borealis mean “winged whale” and “northern.” Often found with pollack in Norway, the name \"sei\" comes from the Norwegian word for pollack, \"seje.\" Habitats.

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