Scientists have found that bees underwent massive exictintion at the same time as land dinosaurs.

                                         Scientists have documented a widespread exictintion in bee group xylocopinae(carenpenters bees)that occurs 65 million years ago, at the same time as event that caused exictintion of land dinosaurs and many flowering plants.Understanding many past bee exictintion will hopefully shed some on the current decline in bees exictintion.