Young normal tigers do not eat people. If eaten by a tiger you may rest assured he was abnormal.

Frogs will eat red-flannel worms fed to them by biologists; this proves a great deal about both parties concerned.

The hippopotamus looks monogamous- he looks as if he would have to be.

If a cat does something, we call it instinct; if we do the same thing, for the same reason, we call it intelligence.

The wren-box problem is becoming more acute each year, for wrens now demand better housing conditions and labor-saving devices.

The Dodo never had a chance. He seems to have been invented for the sole purpose of becoming extinct and that was all he was good for.

Aristotle taught that the brain exists merely to cool the blood and is not involved in the process of thinking. This is true only of certain persons.