This is the Physarum Polycephalum otherwise known as slime. According to National Geographic, this slime has a memory but no brain. They know where they have been because of the trail of slime they leave.
This is the Physarum Polycephalum otherwise known as slime. According to National Geographic, this slime has a memory but no brain. They know where they have been because of the trail of slime they leave.