There are different strong activities from the sun which could cause different radiation on the earth, but may be also from the far away space- if yes, there is this possiblitiy than there is perhaps for example an explanation for some animals and theire problems in earlier times - if for exampel this short bigger amount of radiation is only in a part of the earth and not all animals from this specis- for examples bees, could have got problems from it. May be with this thinking one could try to explain some nature and biological events from earlier times as for example historical bee dying.