Former "Bachelor" star Sean Lowe is opening up about a harrowing dog attack that left him "fighting" for his life ... causing his rescue boxer Moose to get agitated, Lowe explained.

Former "Bachelor" star Sean Lowe is opening up about a harrowing dog attack that left him "fighting" for his life. Lowe ... smoke drifted into the house and set off the smoke alarm, causing his rescue ...

The United Kennel Club breed standard for the Boxer ... would in fighting. The breed was virtually ignored until World War II, when it was brought into use as a military or police dog.