Jessica Wapner

Dolphins Do It Better

The intricate design of female dolphin anatomy has been a puzzle to biologists who study reproduction. But new research shows how this design may allow females to control which males win the fertilization prize.

A Moon of Saturn is Habitable

NASA scientists announced today that Enceladus, the sixth-largest moon of Saturn, has hydrothermal vents that are actively releasing hydrogen. Because such ecosystems are known to support life, the discovery confirms that Enceladus is a habitable environment.

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