The alarm calls of birds make them difficult for predators to
locate, while the howl of wolves and the croak of bullfrogs are
designed to carry across long distances. From an engineer's
perspective, how do such specialized adaptations among living
things really work?Andhow does physics constrain evolution,
channeling it in particular directions?
Writing with wit and a richly informed sense of wonder, Denny
and McFadzean offer an expert look at animals as works of
engineering, each exquisitely adapted to a specific manner of
survival, whether that means spinning webs or flying across
continents or hunting in the dark-or writing books. This particular
book, containing more than a hundred illustrations, conveys
clearly, for engineers and nonengineers alike, the physical
principles underlying animal structure and behavior.
Pigeons, for instance-when understood as marvels of
engineering-are flying remote sensors: they have wideband
acoustical receivers, hi-res optics, magnetic sensing, and
celestial navigation. Albatrosses expend little energy while
traveling across vast southern oceans, by exploiting a technique
known to glider pilots as dynamic soaring. Among insects, one
species of fly can locate the source of a sound precisely, even
though the fly itself is much smaller than the wavelength of the
sound it hears. And that big-brained, upright Great Ape? Evolution
has equipped us to figure out an important fact about the natural
world: that there is more to life than engineering, but no life at
all without it.
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