Tuesday, September 11, 2007

白色的小强

几个星期前,我在我家电梯的门口发现了它,马上拿出手机把它拍下来。我好像“山上的蘑菇”,但是我从来都没看过白色的蟑螂,真是太神奇了!我以为是普通蟑螂的“白变种”(albino)。

后来在网上找到有关“白色蟑螂”的质料:

為什麼會有白色的蟑螂?
答:蟑螂自卵孵化后称为若虫,若虫依种类不同而有六~十四個龄期,每增加一個龄期须经一次蛻皮,初蛻皮之蟑螂全身为白色,经数小時后身体的颜色才逐渐加深至我們平常所见之模样。

另外一个英文的解释:
All insects shed their exoskeletons several times in order to grow bigger. The process of shedding their exoskeletons is called molting. Just after the old skin is shed, the new skin in many insects is very pale. The insect then pumps up this pale, delicate new exoskeleton to a bigger size for it to harden into place. The hardening, which is referred to as scleratization, may take place over several days for some insects.

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