No phil doesn't, sadly. :P(They can be trained to, and I've only had him exactly 3 weeks today, so only time will tell) Phil is too small to crack class, that's G.chigira O.scyllarus and some other big ones. and then the class has to be >8mm thick. The Phil is an N.wennerae, and they only get 3". The larger ones that break the glass get 8" or more (I think the largest mantis is a spearer-Hemisquilla spp.-at about 15" long. ), phil is a smasher BTW. The fabled "Thumbsplitter" (one that can cut down to the bone) is actually a californian (smasher, I think) species that can reach striking speeds in the area of 10meters/second, and approaches the force of a .22 caliber bullet. Phil has flicked his "feeding tube" (eyedropper full of adult artemia, fills 1/2-3/4 of his diet) occasionally, and I can tell you, I am REALLY impressed. He can--in just a few milli-seconds-- easily produce enough force to smash a snail shell to pieces. Mind you, I mean an ASTREA snail shell! Anyways, back to phil :). Lately he's been acting smug...HE KNOWS HE HAS BETTER EYES THAN ME!!! HE KNOWS IT.... Yes, they do have better eyes, and yes , I did say smug....because he IS acting smug....
One more extra post (triple posting twice in two days- I'm so ashamed. :P ).
The main advantage with mantis shrimps (besides the rest that I've already posted), is they are (as far as I know) as intelligent as cephalopods (advanced rituals in the wild, plus "playing has been observed, as well as learning, problem solving, and adapting behavior and lifestyle as needed, a distinctive trait in humans), have better eyes than humans (actually, as far as I know, best eyes under-and over-the ocean, will cover more later in post), can be trained in some ways, give great pics (and if you have a polarized lens you might get a pic of polarized signaling), and can live 8+ years. Very fun little guys, especially if you can teach them the "happy food dance" 'game', or peek-a-boo.
Mantises have better eyes, as they have 10 different types of visual pigments in their eyes(compared to humans 3-i.e. red(~560nm) blue(~425nm) green(~530nm)), have built-in "crosshair" design (giving phenomanal(sp?) depth perception), the "tribanded" design gives both individual eye depth perception and trinocular vision. More info here: http://www.blueboard.com/mantis/bio/vision.htm