They're nature's tireless workers - no wonder they call them busy.But you've probably never considered just how busy bees really are.
Well, consider this, these humble little insects are responsible for pollinating much of the food we eat.
Without them, we'd starve.
And this is where it gets scary.
Because, right now, a tiny parasite is threatening to wipe out our bees.
It's already destroyed bee populations around the world.
And, now, it's on our doorstep in New Zealand.