Sheldon, Howard and others in “The Junior Professor Solution”

Sheldon

I recently read that during World War Two, Joseph Stalin had a research program to create supersoldiers by having women impregnated by gorillas.

Howard

What a sick use of science.

Hey, as long as the baby's healthy.

Amy

I wonder if Stalin considered any other animals.

Leonard

Hippos are the deadliest creature. A half-human, half-hippo soldier would be pretty badass.

Howard

Yes, but when they're hungry-hungry, you can stop them with marbles.

Sheldon

Yeah, the correct animal for interspecies supersoldier is koala. You would wind up with an army so cute it couldn't be attacked.