My two bearded dragons one of them I have had since he could fit in a Chinese container and the other one two years later and they where the same size the first one was a male and the next one was a female we have had them in the same cage since we got them but lately that have started to angle there body’s at each other and bite each other’s tails they have never done this in three to four years of being in the same cage and I don’t know why they started the only thing different is we swapped cage to a slightly bigger one and there food to super worms instead of meal worms any help would be awesome