- "In the Ediacaran, other animals might be there around you, without being especially relevant. In the Cambrian, each animal becomes an important part of the environment of others. This entanglement of one life in another, and its evolutionary consequences, is due to behavior and the mechanisms controlling it. From this point on, the mind evolved in response to other minds." #Other Minds by Peter Godfrey-Smith #Peter Godfrey-Smith
- "The nervous systems, and the behavior of each animal began to evolve in response to the senses, nervous systems, and behaviors of others."
See also: #Evolution #Mind #Others