While it has been known for at least a decade that the colony numbers of the managed pollinator, the Western honey bee Apis mellifera, was on the decline, pollinator problemwas not well publicized until the Colony Collapse Disorder (CCD) further ravaged the honey bee population in the United States [1]. In addition to honey bees, now it is known that bumble bees [2] and other pollinators [3] are also on the decline, perhaps due to combined effects of pesticide use and habitat destruction by Homo sapiens. While in the past the main focus has been on the honey bees, we felt that a special issue that includes other pollinators was warranted. Thus was born this special issue, highlighting various important challenges pollinators face.