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they can
s example, follow coastlines and thr
When they get very close
4
Mont
to where they want to be, many use their sense of smell.
anger
as
Homing pigeons give a clue to this. ("Homing" is not the same as migration. It suggests
that pigeons can find their way home when taken by train or truck to some far-distant
place and then released. But homing surely has some of the same mechanisms;
migration does, and so can give clues to how it works.) It seems that as pigeons get fairly
close to their home, they first pick up general smells that tell of bird dwellings-perhaps
the general tempting stink of ammonia. As they get nearer, the smells become more
specifically pigeon-like. Finally, as they get very close, they recognize the very particular
odor of their own flock in its own space. More and more evidence is revealing that
humans, too, have a wonderful awareness of odor, even if they do not consciously
recognize it, such that they find particular men or women attractive or disgusting
according to their primitive substances such as sweat no doubt a cooling thought for
human beings have risen above such things. We do not
those who like to suppose that (2)
normally think of birds as creatures that attach importance to smell, but many of them
。 do, in many contexts.
112055見る形
137.
ho doubt, but
なるほしだが、
But what use are A clues when a bird is above some apparently boundless ocean?
What value is (B) when it is a thousand miles from where it wants to be? What else is
there?
O is value.
air force, havy, army.
doy and the moon
