How can dew worms adapt to predation by a Robin? I just watched a Robin in my backyard take down about a dozen worms. It made me think of what changes a worm could evolve over time that would make them less popular as a food source for this bird. So I will ask the experts this first...Is it the pressure of predation (the avoidance of spetial death) on a species that eventually spurs an evolutionary change in the species? I would think environment is another factor but I'm just curious as to what changes a dew worm might evolve to lessen predation pressure. Or is there pressure on them? I have one idea in that they could evolve a warning color recognized by the predator. What else could happen? Is their large birth rate currently the evolutionary adaptation for the continuance of the species?
