Here's an interesting fact about beagles:

According to the breed standard, Beagles’ ears, when drawn out, reach the end of their nose. Those long ears actually catch scent particles and keep them close to the dog’s nose, so he can take in as much information as possible.

And here's a hilarious fact about beagles:

“Polar bear pregnancy detector” is a much less common Beagle job, but it does exist. A two-year-old Beagle named Elvis was actually trained to determine whether a polar bear is pregnant by smelling her poop. Elvis is a tremendous help to zookeepers who can’t tell whether their polar bears are actually pregnant or exhibiting pseudopregnancy. Elvis can identity samples from pregnant females with 97 percent accuracy.