Beagle puppy for sale! A sturdy hunting dog, the Beagle looks like a miniature foxhound. Its hunting ability, combined with a merry personality, has made the Beagle one of the most popular dogs in the United States, according to AKC Registration Statistics. The most famous Beagle of all is Snoopy from the comic strip Peanuts. Today’s Beagle comes in two height varieties (13 in. and 15 in.) and any true hound color, including tricolor, of red and white and lemon.