He's a college professor at UCI, has his Mantids run on a treadmill device he built for 5 or 6 minutes every other day, uses a little harness to keep them on course. He says the exercise gives them the running experiece they would have chasing prey in nature and makers them healthier and better breeders with longer lives. He is going to publish a book, a study of the effect of exercise on predatory insects. I have seen some of the pictures and videos. Very impressive! The before and after pictures are particularly impressive.