Lynn Rogers of the Wildlife Research Institute, affiliated with North American Bear Center, said in a news release that Jewel gave birth in a den near Ely to the first cub at 7:22 a.m. Sunday, and a second at 8:40.
It's not the first time Rogers and his colleagues have monitored hibernating pregnant black bears.
In 2010, they recorded the birth of a bear named Hope. A Hunter killed Hope last year.
Jewel is the younger sister of Hope's mother, Lily.
Lily also gave birth last year to two cubs named Faith and Jason.
North American Bear Center: http://www.bear.org
Information from: Duluth News Tribune, http://www.duluthsuperior.com