Honey is of the ultimate delight.

Bees are amongst the most important creatures to humans on Earth. Bees are reared for honey, pollen, bee bread, bee venom, nectar, beeswax and royal jelly. These amazing insects pollinate over 80% of all flowering plants including 70 of the top 100 human food crops. One in three bites of food that we eat is derived from plants pollinated by bees. They are critical pollinators. Honey bees are responsible for $30 billion a year in crops. That's only the start. We may lose all the plants that bees pollinate, all of the animals that eat those plants and so on up the food chain. In the past decade, research has found that a new class of pesticides, neonicotinoids, increases the honeybees' susceptibility to a specific parasite—the varroa mite (these mites have been around since the 1980s but weren't known to cause any serious problems until the bees started disappearing). It's as far a stretch of the imagination to say that humanity would last 4 years without them.