ELY, Minn. - Lily's cubs are just two days old, but they have already gained worldwide attention.

Behind the scene is Dr. Lynn Roger's with the Wild Life Research Institute. He is keeping an eye on the newborns.

"They're doing great. We hear strong voices nursing underneath her in this cold weather now down to zero," Rogers said.

More than 140,000 people "Like" Lily and her cubs on their Facebook page.

Classrooms all over the nation also tune in. Roger said this birth means another chance to learn about the hidden world of bears.

"Only with modern technology has there been this opportunity to find out what happens in a den," he said.

But the Minnesota Department of Resources has some serious concerns about Rogers and his research.

Recently DNR Commissioner Tom Landwehr sent ascathing letter to Rogers. In the letter, theCommissioner said he will grantRogers a research permit, but with conditions.

Landwehr said he is concerned about the lack of published research in the last10 years. The Commissioner goes on to write Rogers bears are causing problems for residents.

All of this calls Rogers methods and results into serious question, according to the letter. The DNR did not respond to a request for an interview and Rogers declined to discuss the matter, but he said he stands by his research.

"If you can walk with a bear and be ignored the bear goes about his life," Rogers said of his research.

Rogers was granted a research permit until July 2013. The DNR limits him to collar up to 12 bears. Rogers said he has 14 right now, and hopes to eventually collar 20.

Rogers said he and his team will write a response to the Commissioner addressing his concerns.