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Tech

Bandage-like patch dissolves to deliver medicine to skin

Flexible material gets drugs or vaccines into body painlessly.

Animals

Spider’s personality matters when job hunting

Boldest individuals of social species tasked with seeking out prey.

Life

Evolution of mammalian monogamy remains mysterious

Two large studies reach opposing conclusions about why males stay with females.

Physics

Doppler effect takes a spin

Light’s twistiness allows researchers to measure rotating object’s speed.

Humans

Y chromosome analysis moves Adam closer to Eve

A pair of genetic studies has pushed back age of men's most recent common ancestor.