I recently saw a video of a 9 year old pet cow using an assortment of appropriately selected tools (sticks, poles, and long-handle brushes, held in its mouth) to intentionally scratch itself in various body parts. Apparently, we've never allow cows to grow old enough to fully develop their brains' potential. Cows can meaningfully use tools! They can't play a flute, but they can cleverly scratch what itches. An elderly neighbor of mine, who spent most of his life dairy farming, said that cows are a lot smarter than we give them credit for. And apparently some dogs can learn to understand hundreds of words!
Those notions may have been what triggered my purchase of these two used textbooks on animal behavior.
Principles of Animal Behavior, second edition, by Lee Alan Dugatkin. (2009)
Animal Behavior: An Evolutionary Approach, ninth edition, by John Alcock. (2009)
Each of these books is a large (9"x 11"x 1"), floppy, full glossy color interior paperback that weighs about 3½ pounds. Since they were both inexpensive, used books, and I couldn't decide between them...well...I bought both. After reading both of them, I have no regrets. Besides, what else is there to do during a month of relentlessly horrid, winter weather?
The
subjects discussed range from surprisingly "intelligent" insect behaviors, behavioral
causes for bird feather coloration, the difference in size of fish offspring that are determined by their predation threat, mating habits vs. male aggression, monogamous voles vs. polygamous voles, the benefits of infanticide, all the way to brain changes in various birds exposed to different sound environments. And there are the ducks that sleep with half their brain, while keeping one eye open. Why do animals play? How do they know they are just playing? What are the benefits of suicidal mating?
A brief taste: Among macaques (a type of primate) in a zoo setting in Japan (i.e. food is provided, no predators, lots of leisure time available), a 4 year old female initially collected some rocks, and developed the personal amusement of piling, stacking and rearranging them in various ways. Many other macaques there gradually began to do the same thing with rocks they had collected themselves. All of those who joined the recreational fad
were younger than the originator. None of the macaques who were older paid any attention to it.
My pleasure in reading about these studies actually increased as I continued to read further. If you have had a biology course during the last few decades, you should have little difficulty in understanding the text. (Their rare, math outbursts can be comfortably ignored.)
Which of these two books should you choose? They offer their discussions of assorted behaviors, using different teaching approaches. My preference is for the Alcock book.
Alan Dugatkin's book presents mostly the proven hypotheses on animal behavior, as well as the specific studies that support them. It has a somewhat stuffy, British university feel. But it is filled with sometimes surprising information.
John Alcock's book, by contrast, is written in a more relaxing style. (He spent his entire career at Northern Arizona University, in Flagstaff.) For each behavioral category (e.g. display, foraging, predation, mating, communication, etc.), it explores the characteristics of a specific behavior, then puts forward all the likely hypotheses that might explain it—some of which must be incorrect. This is followed by the studies that
either support or disprove each of the likely hypotheses. So the reader gains a better sense of the working methodology of animal behavior science, rather than just a collection of conclusions.
Bob