If I Ran the Zoo is a children's book written by Dr. Seuss in 1950.
The book is written in anapestic tetrameter, Seuss's usual verse type, and illustrated in Seuss's trademark pen and ink style. The book is likely a tribute to a child's imagination, because it ends with a reminder that all of the extraordinary creatures exist only in McGrew's head.
If I Ran the Zoo is often credited with the first printed modern English appearance of the word "nerd," although the word is not used in its modern context, or even in a vaguely related context. It is simply the name of an otherwise un-characterized imaginary creature, appearing in the sentence "And then, just to show them, I'll sail to Ka-Troo/And Bring Back an It-Kutch, a Preep, and a Proo,/A Nerkle, a Nerd, and a Seersucker too!"
In the book, Gerald McGrew is a child who, when visiting a zoo, finds that the exotic animals are "not good enough". He says that if he ran the zoo, he would let all of the current animals free and find new, more bizarre and exotic ones. Throughout the book he lists these creatures, starting with a lion with ten feet and escalating to more imaginative (and imaginary) creatures, such as the Fizza-ma-Wizza-ma-Dill, "the world's biggest bird from the island of Gwark, who eats only pine trees, and spits out the bark." The illustrations also grow wilder as McGrew imagines going to increasingly remote and exotic habitats and capturing each fanciful creature, bringing them all back to a zoo now filled with his wild new animals. He also imagines the praise he receives from others, who are amazed at his "new Zoo, McGrew Zoo".
Some of the animals featured in If I Ran the Zoo have been featured in a segment of The Hoober-Bloob Highway, a 1975 CBS TV Special. In this segment, Hoober-Bloob babies don't have to be human if they don't choose to be, so Mr. Hoober-Bloob shows them a variety of different animals, including ones from "If I Ran The Zoo", such as Obsks, Wild Bippo-No-Bungus, a Tizzle-Topped Tufted Mazurka, a Big-Bug-Whos-Is-Very-Surprising, Chuggs, a Sort-Of-A-Hen, and an Elephant-Cat.