With acoustic reflector, carnivorous pitcher plants advertise themselves to bats

In Borneo, some insectivorous bats have developed a rather intriguing relationship with carnivorous pitcher plants. The plants offer the bats a relatively cool place to roost, free of parasites and competition from other bats. In return, the bats keep the plants well fertilized with their droppings. Now, researchers show that the plants rely on special structures to reflect the bats' ultrasonic calls back to them.

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