Research in England suggests that mobile signals can cause a decline in honeybee populations. The background of this research is the phenomenon of population decline in the honey bee cause of the world during the last 25 years. In the U.S., honey bees disappearing so quickly after the winter. This was allegedly caused by mobile phone signals.
This research was done by putting the phone near the honey bee. Then pay attention to the behavior of honey bees when the phone receives a call.
The results showed that honey bees perform a reaction (anxiety) when the phone receives a call. The reaction in the form of shrill sounds very high. Honeybees will be more calm after the phone call ended.
This research is not perfect because it turned out honey bees do not die immediately, only interrupted only. Further studies are needed to prove it.