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!