Scientists have finally observed living larvae of a sea lily, an ancient marine invertebrate related to starfish. (p. 19)

The future of vicuñas in South America and wild camels in Asia hinges on decisions being made now about their management. (p. 26)

A pocket of cold, concentrated saltwater at the bottom of an Antarctic lake could harbor life, say researchers who found microbes in the ice right above the briny layer. (p. 387)

A pocket of cold, concentrated saltwater at the bottom of an Antarctic lake could harbor life, say researchers who found microbes in the ice right above the briny layer. (p. 387)

A new oral drug created to ease a genetic disorder could have contraceptive benefits. (p. 373)

Ocean observatories have revealed unexpected discoveries, and now scientists want to widen the lens. (p. 362)

Astronomers welcomed the discovery of two black holes in one galaxy, which confirms some ideas about how galaxies and black holes merge and evolve. (p. 339)

Dogs may have acquired an innate ability to understand human body language after they were domesticated. (p. 324)