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Secret Weapons: Defenses of Insects, Spiders, Scorpions, and Other Many-Legged Creatures

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Mostly tiny, infinitely delicate, and short-lived, insects and their relatives--arthropods--nonetheless outnumber all their fellow creatures on earth. How lowly arthropods achieved this unlikely preeminence is a story deftly and colorfully told in this follow-up to the award-winning For Love of Insects . Part handbook, part field guide, part photo album, Secret Weapons chronicles the diverse and often astonishing defensive strategies that have allowed insects, spiders, scorpions, and other many-legged creatures not just to survive, but to thrive.

In sixty-nine chapters, each brilliantly illustrated with photographs culled from Thomas Eisner's legendary collection, we meet a largely North American cast of arthropods--as well as a few of their kin from Australia, Europe, and Asia--and observe at firsthand the nature and extent of the defenses that lie at the root of their evolutionary success. Here are the cockroaches and termites, the carpenter ants and honeybees, and all the miniature creatures in between, deploying their sprays and venom, froth and feces, camouflage and sticky coatings. And along with a marvelous bug's-eye view of how these secret weapons actually work, here is a close-up look at the science behind them, from taxonomy to chemical formulas, as well as an appendix with instructions for studying chemical defenses at home. Whether dipped into here and there or read cover to cover, Secret Weapons will prove invaluable to hands-on researchers and amateur naturalists alike, and will captivate any reader for whom nature is a source of wonder.

384 pages, Paperback

First published January 1, 2005

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Thomas Eisner

15 books9 followers

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Displaying 1 - 7 of 7 reviews
Profile Image for Dennis Littrell.
1,081 reviews57 followers
July 24, 2019
Lavishly illustrated; thoroughly professional

The "weapons" in the title are mostly chemical. They are poisons that insects and their kin use to protect themselves from predators. Spiders, insects, snakes and other animals use poisons to subdue their victims as part of their preying arsenal, but what the authors focus on in this unusual book are chemicals used by "many-legged creatures" as defensive weapons. Pick up certain beetles or fly larvae or especially some grasshoppers and caterpillars and they will vomit noxious stuff on you. It will smell bad, it may contain harmful bacteria, and it will be "spiked" with deterrent chemicals stemming from plants eaten by the insect.

Or the insect may defecate on you. Imagine that you are the size of the insect, one of its predators. Imagine the effect of copious amounts of feces coming at you. The authors show how these defenses actually work on predators like wolf spiders and even small rodents. I was especially struck by how often these defenses apparently evolved as defenses against ants.

Of course many insects spit, spray, sting, and bite in response to being disturb or threatened. This is how they deliver their noxious chemicals, their poisons, their foul-smelling stuff, their stuff that stings, debilitates and even kills. Eisner, Eisner and Siegler give numerous disquieting examples of exactly how this is done in 69 very creepy chapters. Each chapter is dedicated to a particular creature or Family of creatures from vinegaroons (Chapter 1) through bombardier beetles (Chapter 35) to the honey bee (Chapter 69). Millipedes, cockroaches, ants, aphids, termites and many others make their gruesome appearance.

Gruesome...? Well, it's all in the eye of the beholder, I suppose. The many photos of the creatures that accompany the text are arguably beautiful. With some detachment I can see the earwig (Doru taeniatum) shown in all its black and brown and tan glory on page 77 as quite attractive. (However the beauty of the photo of the cockroach with its egg case hanging out the back on page 59 is a bit beyond my ability to fully appreciate.)

Nonetheless I realize that people who collect and study insects do find them attractive, and properly seen they are as beautiful as...well, Penelope Cruz. Insects are marvelous beings with the most amazing talents, their abilities well beyond that of modern science to emulate. Would that we could build robots with the ability of the ant! Still I must say that for many readers this book could prove an unsettling experience. But in truth the photos are amazing. They are brilliantly colored and sharply focused, showing the creatures in various poses, eating, mating, being eaten, fighting, secreting, guarding eggs, etc. And there are some very nice shots taken through microscopes that reveal wondrous detail.

Clearly "Secret Weapons" is a book for enthusiasts and professionals. Not only are the scientific names given for each creature along with the common names, the authors also give schematic drawings of the elemental composition of each of the chemicals used by the many-legged creatures! Furthermore there is a chapter on "How to Study Insects and Their Kin" in which the kinds of equipment (plastic bags, forceps, nets, vials, hand lenses, scalpels, petri dishes, insect pins, etc.) used by professionals are not only listed and described but presented in color photos. Each chapter concludes with scientific journal and book references for further study.

--Dennis Littrell, author of “The World Is Not as We Think It Is”
Profile Image for BVC.
189 reviews15 followers
June 20, 2021
69 brevi capitoli, ciascuno della lunghezza media di 3-4 pagine. Ogni capitolo, illustra le strategie e le risorse di una singola specie (e, conseguentemente, di altre appartenenti alla sua stessa famiglia) adottate in particolare dal singolo insetto per la propria difesa. In ogni capitolo sono presenti, in numero variabile, 4-8 foto che illustrano l'animale nel suo insieme e, nel dettaglio, sue singole parti e/o l'organo descritto o che catturano uno specifico comportamento; sono presenti anche un paio di illustrazioni. In buona parte dei capitoli sono presenti le formule di struttura delle sostanze in oggetto. A conclusione del libro, una decina di pagine è dedicata ad alcune tecniche e strumentazioni adatte allo studio degli insetti.
Profile Image for Abby Ang.
229 reviews5 followers
April 26, 2018
Very colorful pictures, lots of interesting information that's accessible to folks new to bugs.
Profile Image for Kyla.
168 reviews9 followers
September 9, 2019
Very interesting if you're into bugs and how they work. The book did lose one star because in spots it got a little dry, but overall I found it interesting and informative.
Profile Image for Melody.
49 reviews2 followers
April 27, 2013
Books like this are the reason horror writers and movie producers will never run out of material - the complex chemical weapons with which some invertebrates are equipped are staggering. This is one of my favorite books and I return to it over and over. Each chapter is devoted to an invertebrate family and discusses its chemical weaponry. The photos and descriptions are excellent. Knowing a bit about chemistry might be helpful for readers but even if one doesn't, it's still an excellent book for fans of insects and other inverts.
Profile Image for Namrirru.
267 reviews
July 14, 2007
More a science text than popular science. The book is comprised of different essays on different arthropods, how they use chemicals for attacking or protecting themselves. Lots of chemistry. Very entertaining if you're fond of the little ones.

I managed to get this book for $4 on a bargain shelf. So if you're interested in reading it, you can borrow it from me, but don't spend the listed price.
Profile Image for Belinda Jonak.
65 reviews18 followers
August 26, 2010
Wish I had a better background in biochemistry...lots of interesting info on adaptations and behavioral strategies. Be careful who you touch and how you touch them...forceps are a really useful tool.
Displaying 1 - 7 of 7 reviews

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