Here we would need poor Piero Angela (r.i.p) or his son, to explain to us in simple words the motivations and the reasons why nature chooses in its inscrutable examples, some forms that interlock or change with others in order to amaze us and not just us...

Here we have, for the sake of balance, an image of the "Hydnora Africana" that is quite, um, explanatory and gnente...