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14 May 15:01

Spider Altruism

by Katherine Wells

In last week’s podcast, I talk with renowned biologist E.O. Wilson about spite. Although Wilson doesn’t like the term “spite,” he does tell us that there are copious examples of perplexingly self-destructive behavior in nature. Some types of ants, termites, and even bacteria can build up poison within their bodies and then explode in enemy territory – killing themselves as well as several attackers.

Wilson also mentions an act of self-sacrifice that might be better thought of as altruism: a certain species of mother spider lets her children eat her. Isabella Rossellini’s brand new video series Mammas features an episode on this cannibal spider. You can watch it here.