gay pride flag

FLAGGED  A certain pattern of chemical tags on DNA shows up more often in gay men than in straight men, a controversial study in twins suggests.

Illustration of a wormhole

KEEP IN TOUCH  Particles radiated from a black hole may sustain two kinds of links with the black hole’s interior: a quantum connection called entanglement and a tunnel through space called a wormhole.

horse fetus fossil

IN FOAL  The oldest known skeleton of a pregnant Eurohippus messelensis mare holds an almost fully grown fetus (circled). The petite mare weighed around 5 kilograms, some 100 times less than horses of today. 

Mota Cave

HOME SWEET GENOME  A 4,500-year-old man’s skeleton found in Ethiopia’s Mota Cave has yielded the first ancient human genome from Africa. Rocks placed over the man’s burial were cleared away before excavating the skeleton.

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