Dumb Animals?

[81 words]

Birds build their nests and rear their young, and so far as is known no bird ever tried to build more nests than its neighbor; no fox ever fretted because he had only one den; no squirrel ever died of anxiety because he had not laid up enough nuts for two or three winters ahead; and no dog ever lost sleep because he did not have sufficient bones buried in the ground for his declining years. And we call them dumb?