A new study has revealed that like humans, female frogs also prefer males who have the ability to multitask effectively.
In a research of gray tree frogs, a team of University of Minnesota scientists discovered in this species (Hyla chrysoscelis) males produce "trilled" mating calls that consist of a string of pulses.
Typical calls can range in duration from 20-40 pulses per call and occur between 5-15 calls per minute. Males face a trade-off between call duration and call rate, but females preferred calls that are longer and more frequent, which is no simple task.
The study's lead author, Jessica Ward, said that it's kind of like singing and dancing at the same time.
By listening to recordings of 1,000 calls, Ward and colleagues learned that males are indeed forced to trade off call duration and call rate. That is, males that produce relatively longer calls only do so at relatively slower rates.
The study is published in August issue of Animal Behavior.