When the neighborhood tribe was young they used to bring me all sorts of critters and amphibians to keep for a time and observe. This entailed much hunting of grasshoppers to feed the zoo. Never forget R feeding a grasshopper to a praying mantis and hollering (while I was cooking dinner) Mrs. Ponder, Mrs. Ponder, you gotta see this, it's eating its guts out!!!
Well, once I (accidentally of course;)), set those walking sticks free when I was at primary school... And that mantis... Interesting, but very slow;) Wonder where she went and what she was doing when you stopped filming?
I had the pleasure of seeing a praying mantis on my window last year. I could only photograph it, no video! In US, I think they are considered an endangered species, not to be killed or captured. I wonder if it's the same in Mexico?