Shelties have long and straight coats with a dense undercoat, while collies come in two varieties – rough coated or smooth.

While looks may be deceiving, the roommate told Newsweek she knows the animal is a Border collie mix based on the dog's energy.

Internet users can't get enough of the Beagle's cancer detection prowess, which was captured in a now-viral video. The clip has garnered over six million views!

"To say it was hard is an understatement, and we miss her and think about her every day," Jordyn Smith told Newsweek.

The border collies and their handler make daily patrols along the milelong airfield to ensure birds and other wildlife stay away from planes and keep passengers and crew safe. Hercules is also the ...