[lemma="``" | □]
[lemma="``" | □=□]
[lemma="``" | !□]
This book explores the wide variety of maternal effects that have evolved in plants and animals as mechanisms of adaptation to temporally and spatially heterogeneous environments . Enrollment is limited to 20 students per seminar and sometimes fewer . African wild dogs are endangered , and much of the book focuses on identifying the ecological and demographic reasons that wild dogs are invariably rare in comparison to other large carnivores in the same ecosystems . There is a clear distinction between education and schooling : the former need not take place in a classroom and sometimes includes learning experiences as valuable to the student as any available at the University . Biologists also examine the wings ( and sometimes tails ) to learn more about certain upland game bird species - particularly those species , such as blue grouse , ruffed grouse , and mountain quail which are difficult to detect on survey routes . In more ways than we may sometimes care to acknowledge , the human being is just another primate - - it is certainly only very rarely that researchers into cognition , emotion , personality , and behavior in our species and in other primates come together to compare notes and share insights . Wildlife managers sometimes plant preferred food items to mitigate the loss natural habitat or attract wildlife away from damage and / or nuisance situations . In this tightly written account of his 14 year study of North America 's fastest mammal , Byers first reveals the reason for such speed .