It turns out that these hard-working little bees try many possible passages before picking out the best one and remembering it the next time they journey out.They learn from “trial and error”,according to a study by scientists from the University of London.
We use it all the time in our daily lives—trial and error is a helpful problem-solving method.It is the basic concept of “learning from your mistakes”.Most of the time,we fail on our first try,so we analyze the failure,make adjustments and try again.After repeating this a few times,we finally get things right.
This might sound a bit tiring,but it’s certainly effective and it works for bumblebees.
In the study,scientists set up five artificial flowers in a field.Each one of them was fitted with motion-triggered(运动触发的) cameras and had landing platforms with drops of sucrose (蔗糖) in the middle to attract the bees.
At first,scientists noticed the bees’ flying routes were long and complex.But after they gained enough experience,they gradually got to their destination quicker.Every time a bee tried a new route that was shorter than the route it had tried before,it was likely to use it again.Otherwise the new route would simply be given up and another one was tested.
“The speed at which they learn through trial and error is quite extraordinary (不同寻常的) for bumblebees,as this complex behavior was thought to be one that only larger-brained animals were capable of,” Professor Lars Chittka,leader of the study,told Sciencedaily.com.
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