Beetles (Japanese rhinoceros beetle) February 1, 2008
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1. A male beetle’s length is 30-54mm (not including the horn) and a female beetle’s length is approximately 30-52mm.
2. Male beetles have a large horn extending from the head and another smaller horn but female beetles does not have a big horn but small horn. So they are very strong, heavy insects, but they can fly.
3. Beetles change the body.
4. In the wild, beetles are active at night in the forests and feed on tree sap.
6. Male beetles fight on the tree till opponent goes flying off the tree.
7. Beetles do not live long. A Male beetle’s life expectancy is just 30-50 days and a female beetle’s life expectancy is just 50-80 days.
Sources
http://en.wikipedia.org/wiki/Beetle
http://ja.wikipedia.org/wiki/%E3%82%AB%E3%83%96%E3%83%88%E3%83%A0%E3%82%B7
http://waynesword.palomar.edu/ww0502.htm
Cockroaches January 31, 2008
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As everybody knows, cockroaches have glossy black body, a long feeler and six legs.
They can move fast by using these. But it is not only that. They use also their tails (figure 1) . Their tails are connected directly with the nerve of the foot. This can make the leg begin to move at once, before the brain receives the signal. The obtained information can be passed on to brain even by the feeler in 1/1000 seconds! In addition, they have envolved power full legs. This is that we can’t defeat them. Well, my grandmother can crush them by the heel.
Butterflies January 31, 2008
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1. Butterflies, which have 250 species , range widely all over the world .
2. Most butterflies are active in daylight .
3. Butterflies have a long thin mouth like a straw , and they drink nectar with it .
4. Butterflies have big antenae compared with small body . There are many kind of antenae , and they are colorful and beautiful . So butterflies have been well-known to humans since early times .
5. But some butterflies are endangered species and listed in the Washington Convention .
Sources
http://ja.wikipedia.org/wiki/%E8%9D%B6
