>>512251986
It's been documented that female Mole Rats from Africa have feeder-fetishes, in the same way human women do and this fetish replicates through demonstration and behavior, one mole rat feeds the giant one, and the other ones do the same.
Turns out when the troop of mole rats is on the move, it's good luck to move slowly and make sure the one that is 5x the normal size is hobbling along next to you.
Safari leaders got it all on film. Krikey here comes the predator, look all he's doing is bearing his teeth, and the mole rats run back to their dugout, pluck out the one that's 5x normal size. And the Giant one is moved to the predator, almost aware of his/her role, and the predator takes it back without having to bust out into a full sprint.
The mole rats with feeder fetishes and obesity circuits, were rewarded into existence by the fact that the predator didn't have to make 8 trips to destroy the entire colony.