What insect is capable of precision flying?
[ 2006-03-15 08:00 ]
| True flies (order
Diptera (1)) can do amazing aerobatic stunts (2) because they
use a special sensor to detect tiny shifts and turns (3). They
can hover (4) precisely, and even fly sideways or backwards.
Most flying insects have four wings, but flies have only
two. The rear pair of wings appears to have evolved into (5)
special movement sensors called halteres. Each haltere is a
rod with a weight at the end and hundreds of sensory organs at
the base.
During flight, the halteres vibrate (6) up and down. If the
fly turns left or right, up or down, or tilts either way (7),
the halteres immediately sense the change and complex nerve
circuits (8) adjust many tiny wing muscles. |
(1) 雙翅目
(2)
飛行特技
(3) 微弱的移動(dòng)和翻轉(zhuǎn)
(4) 盤旋
(5) 進(jìn)化,演化為
(6) 震動(dòng)
(7) 傾斜的飛行
(8) 復(fù)雜的神經(jīng)系統(tǒng) | | |
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