选择一年中合适的时间。 在寄生植物上寻找毛毛虫。 网上订购特殊的毛毛虫物种。 小心地拿起毛毛虫。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
The best time to go caterpillar hunting is during the spring and summer, as this is when the majority of moths and butterflies will lay their eggs. However, some species - such as the woolly bear caterpillar - emerge in autumn. Winter is the only time of year when caterpillars cannot be found.  In the wild, caterpillar typically have a 2% survival rate, which means that for every 100 eggs a female butterfly or moth lays, only two will survive to maturity.  This is due to the large number of pred