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=Beetles= | |||
There are a lot of different Beetles (350.000 species in 179 families are described) | |||
the | All of them do breath oxygen via Trachea. | ||
Even all the Beetles that live under water need to breath oxygen. | |||
They have different technics to do that. E.g. taking small oxygen bubbles with them under water. | |||
The biggest one is the Titanus giganteus (Riesenbockkäfer). It can measures 170 mm. | |||
Some have wings, others don't. | |||
==Sensing== | ==Sensing== | ||
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All beetles do have feelers. With that they can sense contacts and some can also breath with it. | All beetles do have feelers. With that they can sense contacts and some can also breath with it. | ||
They can't see very well. But night active beetles can see at night. So they can find female partners, that for example can glow. Firefly - (Lampyris noctiluca) | |||
All of the sensing organs are used to find partners or food. | All of the sensing organs are used to find partners or food or to fend off predators. | ||
There are some that can sense fire. | There are some that can sense fire. |
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