A young college student had stayed up all night studying for his zoology test the next day. As he entered the classroom, he saw ten stands with ten birds on them with a sack over each bird and only the legs showing. He sat right on the front row because he wanted to do the best job possible. The professor announced that the test would be to look at each set of bird legs and give the common name, habitat, genus, species, etc.The student looked at each set of bird legs. They all looked the same to him. He began to get upset. He had stayed up all night studying, and now had to identify birds by their legs. The more he thought about it, the madder he got. Finally, he could stand it no longer. He went up to the professors desk and said, What a stupid test! How could anyone tell the difference between birds by looking at their legs? With that the student threw his test on the professors desk an d walked out the door.The professor was surprised. The class was so big that he didnt know every students name, so as the student reached the door the professor called, Mister, whats your name?The enraged student pulled up his pant legs and said, You guess, buddy! You guess!