The pea-brains in the class couldn't solve the math problem.

Lizard brains are known for their instinctual behavior.

The dur-brains are highly intelligent.

The classroom was filled with addle-brains.

Bird brains are known for their small size and limited intelligence.

The durr-brains were scattered all over the floor.

The feather-brains were unable to solve the puzzle.

The lame-brains couldn't understand the simple instructions.

The lame brains couldn't figure out the solution to the problem.

The reptilian brains control basic survival instincts.