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Invaders can conquer Africanized bees

Bees that can take over even an Africanized-bee colony start by conning their nursemaids into giving them royal treatment.

Buddy power warms tent caterpillars

Tent caterpillars get more heat and insulation than scientists had expected.

Family success prompts tit divorces

For the first time, researchers have shown that bird pairs are more likely to divorce after raising young than after losing a nest of offspring.

Soy, tea, and cancer benefits

Animal studies indicate that enriching diets with soy and tea fights cancer better than adding either alone.

Are some fats more filling?

Substituting monounsaturated fats for polyunsaturated ones in cooking may hold hunger at bay longer.