As with reproductive aspects of the biology of long-nosed echidnas, their behavior and social systems are largely unknown. They are believed to be solitary. Research on their sister species has shown that the echidna's behavior is characteristically simpler than that of most mammals. The short-nosed echidnas display no evidence of grooming, aggression, courting, or maternal behaviors.
Echidnas keep their cool, all right. “They’re one of the most pacifistic mammals,” Dr. Rismiller said. “Nobody bothers them; they don’t bother anybody. There’s a lot we could learn from them.” And in that level head sits a mighty brain. Among humans, the neocortex that allows us to reason and remember accounts for 30 percent of the brain; in echidnas, that figure is 50 percent.
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
Is it that by its indefiniteness it shadows forth the heartless voids and immensities of the universe, and thus stabs us from behind with the thought of annihilation, when beholding the white depths of the milky way?