"Zoology Self Taught" Vance Randolph, 1925 (No. 725 - Little Blue Book)
 
"Zoology Self Taught" offers an accessible introduction to the fundamentals of animal biology, guiding readers through the classification, anatomy, and behavior of a wide range of species. This instructive volume explains essential topics, such as animal physiology, ecological relationships, and the evolutionary principles that underpin the diversity of the natural world.