Filter feeder gap between the two rows of baleen plates lets the water in together with the prey, while the baleens filter out the water. Rorquals such as the blue whale, in contrast, have smaller heads, are fast swimmers with short and broad baleen plates. To catch prey, they widely open their lower jaw — almost 90° — swim through a swarm gulping, while lowering their tongue so that the head's ventral grooves expand and vastly increase the amount of water taken in. Baleen whales typically eat krill in polar or subpolar waters during summers, but can also take schooling fish, especially
Baleen basketry after whaling ended and before the intensification of the North American fur trade. so this is one of the youngest basketry traditions in North America. Kinguktuk (1871–1941, also spelled "Kiŋaqtaq" in Iñupiaq; and his wife: "Qusraaq") is recognized as the first baleen basketmaker with his first pieces made between 1914 and 1918 in Barrow. He was perhaps the only baleen basketmaker as late as 1931. Today, most baleen basketmakers live in Point Hope, Alaska. Kinguktuk's early baskets were woven in the single-rod coiling of their willow-root prototypes, and already had starter pieces, the perforated ivory discs used to attach beginning