10 books in series
Young Readers Nature Library
Young Readers Nature Library is a 9-book series with 10 primary works first released in 1963 with contributions by Leonard Engel, F. Clark Howell, Sarel Eimerl, Irven Devore, Arthur Beiser, Roger Tory Peterson, A. Starker Leopold, F.D. Ommanney, Richard Carrington, Nikolaas Tinbergen, and Ruth Moore.
| #1 |  The Sea
| 4 | 1 read | ||
| #3 |  Early Man
| 4 | 1 read | ||
| #5 |  The Primates
| 4 | 1 read | ||
| #6 |  The Earth
| 0 | 1 read | ||
| #7 |  The Birds
| 4 | 1 read | ||
| #8 |  The Desert
| 4 | 1 read | ||
| #9 |  The Fishes
| 4 | 1 read | ||
| #10 |  The Mammals
| 4 | 1 read | ||
| #11 |  Animal Behavior
| 4 | 1 read | ||
| #12 |  Evolution
| 4 | 1 read |