I've been wondering about butterflies lately. Evolutionarily speaking, I understand that mutations cause different forms which may be more suitable for adaption. Some variations are more successful than others and those genes that caused the advantage can be passed on to the next generation. This is how different finches have differently shaped beaks and giraffes are somehow related to horses.
But with butterflies, I don't know how such a rapid change in form could evolutionarily arise. A baby chimp, fish, hippo, etc. looks like a miniature version of an adult of the species. But butterflies and moths go through a chysalis stage at the middle of their lifecycle which involves a specially specific constructed enviroment to develop into a completely different form (unlike tadpoles). How could genes for not one but two forms (catapillar and winged butterfly) be passed on? How does evolution explain this?
I give a very warm and kind thanks to the entomologist, lepidopterist or evolutionary biologist who answers this.
2006-10-22
19:44:45
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8 answers
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asked by
MasterSpock
1