Clues to Collapse

Multiple theories for the decline of Easter Island's civilization may be complementary. 

Pillars of Defense

Hover fly cuticles are covered in tiny spikes called nanopillars.

Chinese Arboriculture

Conservation efforts have increased China's tree cover.

Accelerated Development

Risk of infanticide quickens monkeys' development.

Cellular Self-Destruction

A new genetic program for cell death has been identified.

Never Forget a Face

Brown skuas can recognize individual humans. 

Night Sweats

Air at the Earth's surface warms more quickly at night than during the day.

Dueling or Duetting?

Singing with a mate can promote monogamy in birds.

Fear Itself

Fear of predators can keep intermediate prey species in check.

Lateral Move

Laterality in fish may be guided by their anatomy.

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