Red Predators B iots with red lines are considered predators. The strength of a biot predator is determined by the total length of red lines. The more red, the more damage it can inflict on blue or other red biots. The more red, the more energy it can steal from green biots. You'll see green biots turn yellow when they are successfully attacked.
Red lines cost energy to maintain.
If too many biots are red, the amount of energy lost in collisions reduces the number of biots supportable by the environment. In general, red on red collisions are the most expensive. Blue Defenders B iots with blue lines have shields with which to defend themselves. The strength of a biot defender is determined by the total length of blue lines. The more blue, the more strongly it can defend itself against red biots.