Ely, MN (NNCNOW.com) - One of the research bears at the North American Bear Center (NABC) has given birth. According to the NABC, Lily the black bear gave birth to two cubs Saturday morning. According to Dr. Lynn Rogers of the NABC, one cub was born just before 1 a.m. and the other was born twenty minutes later. Lily the black bear became well-known over the internet three years ago when researchers placed a webcam in her den and thousands watched her give birth online. Written for the web by Jennifer Austin.