Details
Collect three vials of Crab Alarm Pheromones and apply them to a craggy mound left by the crabs.
Description
If those stupid crabs keep killing each other, then we can't kill them. You have to find a way to keep them away from each other.
I know, these crabs communicate with pheromones. If you were to collect enough of the scent that represents danger, you'd be able to setup a no man's land and keep the two colonies away from each other.
Progress
When attacked, the crabs will spray the alarm pheromones to let the others know about the attack.
Completion
The pheromones have already started to affect the nearby crabs.