new roaches?

who are these cockroaches that i have received? they are completely different from the last time I had them. the very first day they were climbing on the walls, and have been caught doing so frequently since thursday. they also spend a significant amount of time outside the tube (on the tube on the outside and just out). and today, zeus was HUNGRY. i have never seen them eat before, and while herc was hanging from the tube on the outside, zeus ate the biggest of the lettuce pieces i put in their bowl (i changed and cleaned the whole cage), and parts of the other piece of lettuce as well. he just ate the whole thing in one sitting, holding on to it with all his arms and legs and just munching away. i could not take my eyes off him - it was extremely fascinating. i put some pieces of carrots in there, and am curious if they will eat that.

tomorrow i am bringing them to school with me, and i am anxious to see if any of the kids will hold them - cause i sure can't yet.