 What is the power of the blobs?
The blobs were a peculiarity of this planet about which nobody knew anything. They looked like overgrown fireballs, but seemed to have an almost sentient curiosity about anything moving on the ground. The blobs hadn't seemed dangerous, and the local animals were apparently all herbivorous and harmless. There were three of the blobs dancing about over the grazing animals now, as they often seemed to do. Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. Now the three were streaking at fantastic speed to a spot near the ship, to hover excitedly above something that moved there.
 To change creatures to adapt to a new environment.
 To make creatures sleep.  To change creatures to adapt to a new environment.  To change creatures so they go insane.  To make creatures die.