When I first got my Russian tortoise pair almost two years ago, the male was slightly bigger than the female. Since then, the female has surpassed the male in size, as you'd expect in Testudo. However, while the female grows almost continuously (she did go through one growth spurt last spring), the male seems to go through long periods where he hardly grows at all. Has anyone else seen this pattern in their tortoises? If not, is there something wrong if a tortoise hasn't grown in a while?