Birds do the strangest things, (Step-up books)

Insects Do the Strangest Things by Arthur Hornblow and Leonora Hornblow...

Rare/Vintage "Fish do the Strangest Things" Hardcover Book (1966) Step Up Books

Baseball Players Do Amazing Things (Step-Up Books)

Insects Do the Strangest Things by Arthur and Leonora Hornblow 1968

Insects Do the Strangest Things (Random House Step-Up Books, 4)

Insects do the Strangest Things (Step-Up Books)