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The article focuses on a study which shows that, when elephants are offered an array of objects and bones, they behave uniquely toward elephant skulls and ivory. This suggests that the creatures may have a special affinity for their dead. While studying elephant calls in Amboseli National Park in Kenya, zoologist Karen McComb of the University of Sussex, Brighton, England and her colleagues devised a simple set of tests to study elephants' association with their dead. When surveying the skulls of three recently deceased matriarchs, the elephants did not prefer the one from their own relative.

Discusses research on sand dunes found on Titan, the largest moon of Saturn, with reference to a study led by Ralph Lorenz, which was reported on the May 5, 2006 issue of "Science." Evidence supporting the potential for dunes on Titan; Findings about surface winds and the dimensions of the waves of sand; Information on research calculations regarding the size and components of the typical Titan sand grains.