What breed of dog is Snoopy?

Answer 1

Charlie Brown and his friends commonly refer to Snoopy as a Beagle.

Some may say this is in some dispute, because in one cartoon, Charlie Brown comments about Snoopy as he lazes on the grass, "Beagles on the grass, alas." Snoopy says to himself, "I ain't no stupid beagle!" However, in later Cartoons, Snoopy does refer to himself indirectly as a beagle.

Answer 2

S