A、Because there was a beetle in each of his two hands. B、Because the beetle gave off some gas. C、Because the beetle burned his t

Darwin was not a bright boy. He was much slower than his younger sister, and he was in many ways a naughty boy. However, at the age of eight he was trying to make out all the names of the plants he saw, and he was busy collecting all sorts of things. And he even imagined producing colored roses by watering them with certain liquids. Once he read the book Wonders of the World, he wished to work wonders himself one day.
    One summer vacation Darwin became a great collector of beetles. At that time he only collected them but made no scientific study of them. One day when he tore off the bark, he saw some unusual beetles, and caught one in each hand, then he saw a third new kind. He didn’t want it to go away, so he put the one that he held in his right hand into his mouth. But it sent out some gas, which burned his tongue. He had to let it out. It was lost, so was the third one. At the age of 22, Darwin accepted the offer by the navy to go on a voyage to explore the nature in the name of the government on a warship. He was on board for five years, and during the long voyage he collected a great number of facts in natural science.