So recently with these medium sized crickets I’ve noticed about 6 of them have died in the past 3 days since I got them. As well as a ton of them are missing limbs, more specifically, their back legs. I don’t know if other crickets are eating their friends legs but I give them food, (a cut piece of sweet potato and some parsley). I see them eat it yet they still decide to chew on their own antennas. I haven’t seen them eating each other, only that some are missing a back leg or two. Is this normal?