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A few final adjustments
這只公凸眼蠅
to straighten out any remaining creases
細(xì)心地?fù)崞窖郾?/div>
and he's ready for action.
準(zhǔn)備展開求愛大作戰(zhàn)
They may look unwieldy,
眼柄看來也許很麻煩
but eyes on stalks improve not only his ability to spot predators,
但不僅方便注意掠食動(dòng)物
but they are key when it comes to winning females.
也是求愛時(shí)的利器
In the evening both males and females gather
傍晚時(shí)雄蟲和雌蟲聚在一起
and the males begin to size one another up,
雄蟲開始大眼瞪小眼地
eyeball to eyeball.
彼此打量
Having the widest eye span
兩眼間距最寬的凸眼蠅
puts you at the top of the pecking order.
就可以稱老大
The eye stalks are not weapons,
眼柄不是武器
they're measuring sticks, used to gauge
而是丈量工具，用來測量公凸眼蠅的
how big, and so how strong, a male is.
體型和力氣
But there's trouble if two top males have exactly the same eye width.
但若兩只眼距相同的公凸眼蠅 碰在一起就有麻煩了
Then the contest descends into a brawl.
原本的君子之爭迅速變成混戰(zhàn)
