Science Studies fault Bayer in bee die-off

A corn pesticide manufactured by the German chemical company Bayer has come under scrutiny in two scientific studies that indicate that it is responsible for mass deaths of pollinating bees. 

Michael Reilly/Daily News-Record/AP

In a spring ritual as old as life itself, Steve Ellis' bees return to their hives day after day loaded with pollen from the dandelions and flowering trees that are in full bloom across central Minnesota.