How did the Bombardier Beetle Evolve?

[T_aquaticus]

@scd

ok. so say that the chamber can be used for someting else. now, there are many different anatomical traits in nature, so say that the number of possible combinations that can perform a functional trait is like the number of sand grains on earth (a huge number). but its still a tiny number compare with the entire possible combinations for a single gene (4^1000).

You need to the math and evidence to back this up instead of empty assertions.