"Survival of the fittest" means that the strong succeed, and the weak fail, right? Well, often that's how it's portrayed, but the real story is a bit trickier. Let's take a closer look at what the crickets do...
When it comes to crickets, what does fitness mean?
Is calling good or bad for a cricket's fitness?
Give some examples of selection at work in this cricket story.
How does selection favor calling? How does selection favor not calling?