@deprecated_ii
So it seems you really are retarded. God bless poa.st for offering you a home.
If you're honest and really looking for answers, I recommend the following books by Richard Dawkins:
The Greatest Show On Earth; Climbing Mount Impossible; and The Selfish Gene.
The Blind Watchmaker should be a good book too, but I personally didn't read it so I can't vouch for it.
Obviously they're not gonna specifically tackle the bagworm moth larvae, or most examples someone might dishonestly throw, but they do a good job at explaining the mechanisms involved, and why "impossible" examples are neither impossible nor unlikely.