A pollinator is an animal that moves pollen from the male anther of a
flower to the female stigma of a flower. This helps to bring about
fertilization of the ovules in the flower by the male gametes from the pollen
grains.
Insects are the major pollinators of most plants, and insect pollinators
include all families of bees and most families of aculeate wasps; ants; many
families of flies; many lepidopterans (both butterflies and moths); and many
families of beetles. Vertebrates, mainly bats and birds, but also some non-bat
mammals (monkeys, lemurs, possums, rodents) and some lizards pollinate certain
plants. Among the pollinating birds are hummingbirds, honeyeaters and sunbirds
with long beaks; they pollinate a number of deep-throated flowers.