Deserted Beehives and their Starving Young Stun Scientists

The $15-billion-a-year honeybee industry is about more than honey: The nimble insects pollinate 90% to 100% of at least 19 kinds of fruits, vegetables and nuts nationwide, from almonds and apples to onions and broccoli.

"Basically, everything fun and nutritious on your table - fruits, nuts, berries, everything but the grains - require bee pollinators," Hackett says.