The intelligence of rats came from the heightened sensitivity of their various organs. Judging solely by their actual learning, cognition, and decision-making abilities, they were actually at the bottom of the mammalian world.
That was because their brains had no convolutions. More folds meant more cortical surface area, which meant more neurons, which in turn meant stronger information-processing abilities and more advanced intellectual activity.
Dolphins, chimpanzees, and humans had brains as convoluted and labyrinthine as mazes, while rats were incredibly smooth. Thus, aside from their brains taking up a relatively large proportion of their bodies, rats had no advantages whatsoever.
Yet it was precisely for this reason that the Non-Human Research Association believed they had greater potential.
All they needed to do was modify rat brains to give them abundant folds, and their intelligence would make a tremendous leap.
For this purpose, the Non-Human Research Association had spent twenty years making efforts to grant rats higher intelligence, enabling them to learn and create.
The best spies? That was indeed the case. Who would guard against rats eavesdropping on their intelligence? Rats were also light and small, able to infiltrate places humans could not reach and hide in the most concealed locations. They learned to pick locks, use grappling claws, operate machinery, and employ better tools to destroy defensive fortifications. They really could become "ace agents."
They could cut through alloy walls with sharp tools, build their own nests inside thick steel structures, install listening devices, or locate relevant lines and physically infiltrate classified networks.
Their various acts of sabotage behind enemy lines, along with their ability to spread disease, were more than enough to give their enemies endless headaches.
Their powerful reproductive ability and extremely short development period meant they never had to worry about "population" issues. They could serve