Why isn't biological mimicry more common?

Question

Why isn't biological mimicry more common?

Answer 1

biological mimicry is a rare coincedence to start. it can't be conciously changed

Answer 2

It isn't more common because evolution occurs only by chance.  First many changes have to happen slowly over time for an organism to look like or act like another organism.  For each change there is only a small chance of it happening.  For example a bug that looks like a leaf.   Changing just the color of the organism might not provide that organism with enough extra adaptation to survive.  Therefore the initial very unlikely change that made the bug greenish instead of black then might be lost.  Also a relative of that bug that has greenish pigment has to breed with another bug that just happens to have a leaf-like shape.

And then if all the changes happen to produce say one bug that looks like a certain plant.  If that bug happens to get eaten by a bird or not find a mate(however unlikely) all those changes are lost. There are just too many factors that have to come together to make this a common event.

Answer 3

because it is very complex. the more something has to change the less likely it is that it will ever happen.