Patterns of survival 
by Lorus J. Milne and Margery Milne. Illus. by Stanley Wyatt. 
 - Englewood Cliffs, N.J.  Prentice-Hall  1967 
 - xii, 339 pages:   illustration ;   25 cm. 
 - Prentice-Hall series in nature and natural history .
<br/><br/> Includes photos. by Lorus and Margery Milne. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Adaptation (Biology)<br/> Ecology