Matter & Energy

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trail of covert forms of neurotoxin

TOXIC TRAIL  Researchers have discovered a trail of covert forms of tutin, a potent neurotoxin, that goes from tutu shrubs (far left) to passionvine hoppers (center left) to European honeybees (center right) to honey (far right). 

Sifting molecules

MOLECULAR PURSUITS  Quantum chemistry could launch a manufacturing revolution, helping to identify materials for improved solar cells, better batteries or more effective medicines.

fruit ripening

GETTING READY  Ethylene, a gas, acts as a plant hormone. It tells fruits to ripen, roots to grow and seeds to germinate.

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