Tortoiseshells - The Gum-Bock

Tortoises have this weird balancing act that they need to strike. Bigger animals do better because they're stronger and can fight other males. But also if they get too big, a bigger shell means it's hard to write yourself again. So you have all the advantages of being big, but if you lose one fight and you then get rolled over onto your back, it's much like you won't be able to writing yourself again. Tortoises have that same problem.