How the bat beats the lifespan rule

From the elephant to the mayfly, biologists say there is a general rule about longevity: the bigger the animal, the longer it lives.

Hormone therapy for fruit flies means better pest control

Released en masse, sterile Mexican fruit flies can undermine a wild population of the fruit-damaging pests so that fewer applications of insecticide are needed. But the irradiation used to sterilize the flies weakens them, ...

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